Year Cash Flow 1 $1,010 2 820 3 4 1,450 1,810 a. If the discount rate is 12 percent, what is the present value of these cash flows? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) b. What is the present value at 15 percent? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) c. What is the present value at 21 percent? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) a. Present value at 12 percent b. Present value at 15 percent C. Present value at 21 percent