The diagram shows a partly filled water tank

Need ! easy 6th grade work! i will put as much points as i can! you so much! i’m learning this in math and it’s soo

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?

Atown has a population of 12000 and grows at 3.5% every year. what will be the population after 7 years, to the nearest whole number?