(Present value of annulties and complex cash flows) You are given throo investrnent allomatives to analyze. The cash fows from these three investments are as follows: a. What is the present value of inventment A at an annual ciscount rate of 18 percent? (Round to the fiearest certil) b. What is the prosent value of investrment 8 at an annual discount rate of 18 percent? (Round to the nearest cent.)