Please explain all answers with an applicable formula.

1. A zero-coupon bond that is currently priced at $456, has a face value of $1,000, and matures in 10 years. What is the yield to maturity of this bond? Round to the nearest hundredth percent. Do not include the percent sign in your answer. (For example, if your answer is 5.67%, type 5.67 without % sign)

An 8% annual coupon bond, with a face value of $1,000 that matures in 15 years, pays interest annually, and has a yield to maturity of 9.75 percent. What is the current market price of the bond? Round to the nearest cent. Do not a dollar sign in your answer. (i.e. If your answer is $432.51, then type 432.51 without $ sign)