What does an exchange rate tell you? a. how many products have been exchanged between two different countries b. the number of people in one country in comparison to another country c. how much one unit of currency is worth when converted to another currency d. the speed that people are buying a specific type of product

Qwest airlines has implemented a program to recycle all plastic drink cups used on their aircraft. their goal is to generate $7 million by the end of the recycle program's five-year life. each recycled cup can be sold for $0.005 (1/2 cent). a. how many cups must be recycled annually to meet this goal? assume uniform annual plastic cup usage and a 0% interest rate. b. repeat part (a) when the annual interest rate is 12%. c. why is the answer to part (b) less than the answer to part (a)?