6. Now consider the following schedule of payments: End of Year 0 1 2 3 Payment $2,000 2.000 0 1,500 2.500 4,000 5 a.What is the value of this payment stream at the end of Year 5 if the payments are invested at 10.0 percent annually? b. What payment today (Year 0) would be needed to accumulate the needed $20,000? (Assume that the payments for Years 1 through 5 remain the same.)