K a. What is the present value of the following set of cash flows, discounted at 9.7% per year? 3 Year CF 1 $9 2 $21 4 5 $33 $45 $57 b. What is the present value of the following set of cash flows, discounted at 9.7% per year? Year CF 1 $57 2 3 4 $45 $33 $21 $9 59 c. Each set contains the same cash flows ($9, $21, $33, $45, $57), so why is the present value different?