need b and d

Use the present value tables in Appendix A and Appendix B to compute the NPV of each of the following cash inflows Required: 0. $20,700 received at the end of 15 years. The discount rate is 3 percent b. \$5,100 received at the end of four years and $14,250 received at the end of eight years. The discount rate is 5 percent c. $2.270 received annually at the end of each of the next seven years. The discount rate is 3 percent. d. $63,000 received annually at the end of each of the next three years and $80,750 received at the end of the fourth year. The discount rate is 4 percent Note: For all requirements, round discount factor(s) to 3 decimal places, all other intermediate calculations and final answers to the nearest whole dollor amount