If a rock had 80 radioactive atoms in it when it was formed and it now has 40 radioactive elements in it, how old is the rock?

its 120 that hoow old it is

EXTRA POINTS WILL MARK BRAINLY
Find the elapsed time
4:15 p.m. to 10:00 p.m.
A. 6 h 45 minutes
B. 5 h 45 minutes
C. 5 h 15 minutes

Which of the following is a purpose of a flow line map?

We collected all the eggs. We milked the cows.

Which of the following options correctly creates a compound sentence using a conjunction and a comma? (2 points)

a
We collected all the eggs, and we milked the cows.

b
We, collected all the eggs and we milked the cows.

c
We collected all the eggs and, we milked the cows.

d
We collected all the eggs and we milked, the cows.

Question is in the picture

Which is one way that Taylor connects readers to the past in Roll of Thunder, Hear My Cry?
A. She places historical events in a modern setting.
B. She reports only true events from the time period.
C. She uses dialogue that is true to the time period.
D. She places historical events in an imaginary setting.

The Bill of Rights was to be ratified by three-fourths of the ___.
A) legislatures
B) Senators
C) Supreme Court judges
D) House of Representatives
E) electors

how did the expeditions of cortes and pizarro from those of other spanish explorers in the americas?

The moderator of a group discussion.
A. takes turns listening and speaking.
B. follows the participants' directions.
C. shares opinions and evidence.
D. keeps the talk focused on the topic.

PLEASE ANSWER ASAP!!! Describe the tech boom. Talk about what life was like, what type of industries, robber barons, and life for workers. (This is my second time posting it since the other question was a flop)

When two countries sign a free trade agreement, they are agreeing to __________. A. reduce import and export barriers B. create new trade quotas C. reduce the volume of trade D. create protectionist policies Please select the best answer from the choices provided A B C D

please help *10* points. i know not a lot but i dont have very many points left... PLEASE HELP ME YALL ****ASAP****


Which of the following climate regions tends to have short grasses and shrubs that receive little rain? A. tropical wet and dry B. humid subtropical C. moderate D. semiarid

Explain why the Colonists relied on the Powhatan?

CAIRO, Egypt. Imagine traveling across a 4,000-mile-wide (6,437.4-kilometer) desert with little water nearby. Now, imagine running across that same desert, at least 44 miles (70.8 kilometers) at a time, day after day. That's just what three men did recently. They became the first modern runners to cross the Sahara Desert.

Describe the men's journey across Africa. What challenges did the men face? Where did their journey take them? Use information from the lesson in your answer.


Charlie Engle of the U.S., Ray Zahab of Canada, and Kevin Lin of Taiwan completed the run in 111 days. They traveled through six countries. Starting in Senegal, they ran through Mauritania, Mali, Niger, Libya, and Egypt. After nearly four months, they reached Egypt's Red Sea. There, they put their hands in the water to show that they had crossed the finish line.


"We touched the water in Senegal at the beginning, and we touched the water in the Red Sea at the end. They were the bookends of our journey," said Engle. He added, "It will take time to sink in . . . but this is an absolutely once-in-a-lifetime thing. . . . [Now] that I know how hard this is, I would never consider crossing the Sahara on foot again."


Most people would never have considered such a journey in the first place. The Sahara Desert is one of the harshest places on Earth. During the day, the sun can send temperatures soaring above 100 degrees (over 37 degrees Celsius). Nighttime temperatures can dip below freezing. Strong winds send sand flying in every direction, making it difficult to see and breathe.


Engle, Zahab, and Lin are all experienced athletes. They have run in adventure races around the world. Still, nothing would have prepared them for the Sahara. At various times during the run, they suffered from upset stomachs, cramping, and knee injuries. At the same time, they had to endure the unforgiving climate.


The runners' days were exhausting, too. After waking up at 4 a.m., the trio would begin running at about five. Around noon, they would take a lunch break, eating pasta, tuna, and vegetables—all foods that provide energy. After a short nap in a tent on thin mattresses, they would start running again. They would run until about 9:30 p.m.


The runners brought along supplies and equipment to protect themselves from the dangers of the desert. They had devices that used the global positioning system to track their route. They also teamed up with local experts and sports trainers. These people followed the runners in four-wheel-drive vehicles.


Despite the planning and preparation, the runners often questioned whether they were doing the right thing. Sometimes the wind was so harsh that the runners could not keep the sand out of their clothes. The three kept going, however. They ran up to 50 miles (80.5 kilometers) a day. That's twice the length of a city marathon.


A film crew also followed the runners. The crew was recording the journey for actor Matt Damon's movie company. Damon will make a movie about the trip called "Running the Sahara."


Why did the athletes make the run? They welcomed the challenge. They also wanted to raise awareness about an ongoing problem. Desert communities often struggle to find clean water. Several times, the athletes stopped near wells to talk with villagers about the situation.


"It started off as a huge motivator, especially as we passed through countries where the water wasn't clean," Engle said. He and the other runners hope that their work will help the efforts of H2O Africa. The group helps countries find or make clean water. The athletes plan to raise money for the group.


"We have seen firsthand the need for clean water, which we take for granted in North America," Zahab said.

The desert run was full of challenges. Now that the runners have finished, the men know that they will never be the same.


"This has been a life changing event," Engle said.


The Associated Press contributed to this story.

All of the following are career options for someone not interested in going to college EXCEPT:
A.
enlisting in the military
B.
becoming a veterinarian
C.
practicing cosmetology
D.
working as an electrician


Please select the best answer from the choices provided

A
B
C
D

BELOW THIS IS THE QUESTION

What factors led to the growth of the Middle Colonies?

people who oppose all forms of organized government t f

Who wrote a medical encyclopedia that was translated into Latin and widely used throughout Europe?  ​

EXTRA POINTS AND WILL MARK BRAINLY
Fourteen years ago a city of 400,000 people on this side of the river heard of a projected suspension bridge with incredulity. The span was so long, the height so great, and the enterprise likely to be so costly, that few thought of it as something begun in earnest. The irresistible demands of commerce enforced these hard conditions. But Science said, "It is possible," and Courage said, "It shall be!" To-day a city of 600,000 people welcomes with enthusiasm the wonderful creation of genius. Graceful, and yet majestic, it clings to the land like a thing that has taken root. Beautiful as a vision of fairyland it salutes our sight. The impression it makes upon the visitor is one of astonishment, an astonishment that grows with every visit. No one who has been upon it can ever forget it. This great structure cannot be confined to the limits of local pride. The glory of it belongs to the race. Not one shall see it and not feel prouder to be a man.
Which detail from the excerpt is important to the central idea?
A. 400,000 people . . .
B. on this side of the river . . .
C. The span was so long . . .
D. cannot be confined . .

Someone help me!!
The California Constitution gives citizens the power to propose an amendment to the state constitution by submitting a petition to the California Attorney General. What is the name for this method of citizen impact on a state?

Select one:
a. Recall
b. Implementation
c. Referendum
d. Initiative

1. When Alexander and his army invaded Asia in 334 BCE, where did they first meet serious Persian resistance?

2. How many times does the city name Alexandria appear on the map? What conclusions can you draw from this?

3. As Alexander's foot soldiers marched, approximately how many miles was it from Pella, the capital of Macedonia to Egypt to the Hydaspes River in India? Follow the arrows.

4. How can you use the map to argue that Alexander was great?

5. How can you use the map to argue that Alexander was not great?

6. Where is the Hydaspes River?

7. Explain how Alexander's army was able to cross the Hydaspes River before Porus was able to react.

8. How was Alexander able to turn Porus's elephants into a kind of weapon?

9. How can you use this document to argue that Alexander was great?

10. How can you use this document to argue that Alexander was not great?

How did the elections of 1796 and 1800 get the 12th amendment passed? Also what is the importance of the 12th amendment?

Which of these details does NOT support the central
idea?
Central Idea: Even though one of Edison's inventions failed, he never stopped
trying out new ideas.

A) The vocal engine was a cumbersome device for the
user.

B) Edison created a version of the light bulb that
was affordable and long-lasting.

C) Sound waves are not powerful enough to make the
vocal engine useful.

D) The vocal engine had a few fatal flaws.

WILL MARK BRAINLY!!
"Naw you ain't," said Stacey. There was a shocked silence as all heads turned to him. "This here thing's between Cassie and Lillian Jean and ain't nobody telling nobody nothin' 'bout this." He stared directly at T.J., caught his eye, and repeated, "Nobody."


"Ah, man!" cried T.J. "It ain't none of my business." Then, after a moment's silence, he added, "I got too many worries of my own to worry 'bout Cassie Uncle Tomming Lillian Jean."


My temper almost flew out of my mouth, but I pressed my lips tightly together, forcing it to stay inside.

Based on the excerpt, what causes Cassie to almost lose her temper?

A. Stacey telling everyone that they will not say anything

B. T.J. talking to everyone about all of his worries

C. Stacey saying that Cassie’s business is her business

D. T.J. accusing Cassie of Uncle Tomming Lillian Jean

What feeling motivates Cassie’s behavior toward Lillian Jean in Chapter 8 of from Roll of Thunder Hear My Cry?
EXTRA POINTS AND WILL MARK BRAINY!
Note: The item below has been reviewed and is scheduled to be updated. All students will receive full credit for any response to the following.
A. kindness
B. fear
C. anger
D. pity

EXTRA POINTS
Which is one way that Taylor connects readers to the past in Roll of Thunder, Hear My Cry?
A. She places historical events in a modern setting.
B. She reports only true events from the time period.
C. She uses dialogue that is true to the time period.
D. She places historical events in an imaginary setting.

In your own words, explain the differences and similarities between maps and globes. Then, explain which is better, a map or a globe. Explain why you made your choice.

Who is thought of as the Mother of the Boston Tea Party?

a
Ms. Johnson
b
Abigail Adams
c
Susan Boudinot
d
Sarah Bradlee Fulton

Would you have supported the Alien and Sedition Acts? Explain your answer.
Please help!! :)

Recollections or observations of the times or events a person has witnessed would be found in that person's ------

autobiography

biography

memoir