6. You have estimated that for the first 6 years after you retire you will need a cash inflow of $48,000 at the end of each year. How much money do you need to invest at 4% at your retirement age to obtain this annual cash inflow? At 6%? 7. The following table shows two schedules of prospective operating cash inflows, each of which re- quires the same net initial investment of $18,000 now: Annual Cash Inflows Plan A $ 2,000 Plan B S 3,000 5,000 9,000 5,000 3,000 $25,000 Year 3,000 4,000 7,000 9,000 Total $25,000 The required rate of return is 6% compounded annually. All cash inflows occur at the end of each year. In terms of net present value, which plan is more desirable? Show your computations