1. Your grandfather put $250 under his mattress 50 years ago. If he had invested it in a bank account paying 3.5% interest compounded yearly (roughly the average US rate of inflation during that period), a. How much would it be worth now? b. How much interest would he have made?

1. Your grandfather put $250 under his mattress 50 years ago. If he had invested it in a bank account paying 3.5% interest compounded yearly (roughly the average US rate of inflation during that period), a. How much would it be worth now? b. How much interest would he have made