What is the relationship between 0.7 and 0.07

Ineed me i stuck and i don’t want to get it wrong

What does independent variable and dependent variable mean in math?

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?