What is the present value of: (Use a Financial calculator to arrive at the answers. Enter all values as positive. Round the final answers to nearest whole dollar.)

a. $8,500 in 10 years at 7 percent?

Present value $

b. $22,000 in 9 years at 14 percent?

Present value $

c. $31,000 in 10 years at 6 percent?

Present value $

d. $1,000 in 25 years at 20 percent?

Present value $