16. "Give me $5,000 today and I'll return $10,000 to you in 5 years," offers the investment broker. To the nearest percent, what annual interest rate is being offered? A. 12.29% B. 13.67% C. 14.87% D. 12.84% 17. What is the discount factor for $1 to be received in 5 years at a discount rate of 8%? A. 0.4693 B. 0.5500 C. 0.6000 D. 0.6806 18. If a borrower promises to pay you $1,900 nine years from now in return for a loan of $1,000 today, what effective annual interest rate is being offered if interest is compounded annually? A. 5.26% B. 7.39% C. 9.00% D. 10.00%