PLEASE HELP, a is correct just need b,c, 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: a. $95,250 received at the end of six years. The discount rate is 8 percent. b. $4,900 received annually at the end of each of the next 15 years. The discount rate is 9 percent. c. A 10 -year annuity of $8,550 per annum. The first $8,550 payment is due immediately. The discount rate is 6 percent. d. $26,000 received annually at the end of years 1 through 5 followed by $22,250 received annually at the end of years 6 through 10. The discount rate is 15 percent. Note: For all requirements, round discount factor(s) to 3 decimal places, all other intermediate calculations and final answers to the nearest whole dollar amount. Use the present value tables in Appendix A and Appendix B to compute the NPV of each of the following cash inflows: Required: a. $95,250 received at the end of six years. The discount rate is 8 percent. b. $4,900 received annually at the end of each of the next 15 years. The discount rate is 9 percent. c. A 10 -year annuity of $8,550 per annum. The first $8,550 payment is due immediately. The discount rate is 6 percent. d. $26,000 received annually at the end of years 1 through 5 followed by $22,250 received annually at the end of years 6 through 10. The discount rate is 15 percent. Note: For all requirements, round discount factor(s) to 3 decimal places, all other intermediate calculations and final answers to the nearest whole dollar amount