A student wrote the 5 different situations that are shown in the answer choices below. Select all of the situations that could be modeled by a linear equation.
A. The Barton family is driving at a rate of 62 miles per hour.
B. Mr. Dominguez invested $1000. This money is growing at a rate of 4% per year.
C. A tree was 10 feet tall when purchased. It is growing at a rate of 2 feet per year.
D. Tim dropped a coin off a bridge. It is falling at a rate of 9.8 meters per second squared
E The amount of people in a stadium is decreasing at a rate of 45% every 10 minutes.

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.

it would rotate about 180 degrees.