Please show all work.

8. What's the present value of a $1,800 annuity payment over 7 years and an interest rate of 9 percent?

A. $8,246

B. $12,243

C. $10,440

D. $9,059

11. A treasury bond bought at the beginning of the year for $1,064 pays $48 in interest payments during the year, ending the year valued at $1,095. What was the percent return?

A. 7.42

B. 8.44

C. 4.88

D. 6.86