Help Its A Math Problem What is the number that goes in the blanks?

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?

Which angle has the same measure as the dehedral angle formed by the orange face and the purple rectangle

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.