8. If you invest $10,000 in a 4-year certificate of deposit (CD) paying 10 percent interest compounded annually, determine how much the CD will be worth at the end of 4 years. a. $45,730 b. $15,958 c. $13,601 d. $14,641 9. Your grandparents put $1,000 into a savings account for you when you were born 20 years ago. This account has been earning interest at a compound rate of 7 percent. What is its value today to the nearest dollar? a. $3,583 b. $3,870 c. $1,967 d. $3,026 10. You have just been offered $50,000 in 20 years from your rich aunt. If the discount rate is 10%, what is the present value of the offer to the nearest dollar? a. $8,175 b. $1,493 c. $7,432 d. $8,932