Find the following values for a single cash flow:
a. the future value of $500 at 8 % for 1 year
b. The future value of $500 invested at 8% for 5 years
c. The present value of $500 to be received in one year when the opportunity cost rate is 8%
d. The present value of $ 500 to be received in five years when the opportunity cost rate is 8%