If a farmer has one square mile of land if he divides his land into square fields that are 1/4 mile long and 1/4 mile wide how many fields does he have

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?