i just need help with transaction c and d

Using the tables in Exhbits 26.3 and 26.4, determine the present value of the following cash flows, discounted at an annual rate of 15 percent. (Round "pV factors" to 3 decimal places. Do not round intermediate calculations and round your final answers to the nearest whole dollar amount.) a. $9,000 to be received 20 years from today. b. $17,000 to be received annually for 10 years. c. $12,600 to be recelved annually for five years, with an additional $12,000 salvage value expected at the end of the fifth year. d. $29,000 to be received annually for the first three years, followed by $20,000 received annually for the next two years (total of five years in which cash is received)