Coach Smith purchased a fishing boat for $15,000, and the value of the boat depreciates at 12% per year. How much will the boat be worth after 8 years?

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?