(Related to Checkpoint 9.2 and Checkpoint 9.3) (Bond valuation) The 15 -year $1,000 par bonds of Vail Inc. pay 9 percent interest. The market's required yield to maturity on a comparable-risk bond is 12 percent. The current market price for the bond is $880. a. Determine the yield to maturity. b. What is the value of the bonds to you given the yield to maturity on a comparable-risk bond? c. Should you purchase the bond at the current market price