Please help. Specifically need answer for b. I don't know where to start.

3. Use time value of money tables or financial calculator to calculate the following: a. The future value of $100 at 5 percent in 8 years b. The future value of $100 contributed per year for 8 years earning 8 percent C. The present value of $1500 received in 10 years with an interest rate of 4 percent