How to find the present and future values of this problem in detail
Compute the present value of a $100 cash flow for the following combinations of discount rates and times:
a. r = 8 percent, t = 10 years
b. r = 8 percent, t = 20 years
c. r = 4 percent, t = 10 years
d. r = 4 percent, t = 20 years.
Once those are calculated I need to know how to do the Future Values by computing the future value of a $100 cash flow for the same combinations of rates and times as above.