(Present value of annuities and complex cash flows) You are given three investment alternatives to analyze. The cash flows from these three investments are as follows: Investment B End of Year 1 2 $ 18,000 A $ 13,000 13,000 13,000 13,000 13,000 3 4 5 6 54,000 $ 13,000 13,000 13,000 13,000 7 8 a. What is the present value of investment A at an annual discount rate of 15 percent? $ (Round to the nearest cent.) b. What is the present value of investment B at an annual discount rate of 15 percent? $ (Round to the nearest cent.) c. What is the present value of investment C at an annual discount rate of 15 percent? (Round to the nearest cent.)