The zero coupon bonds of JK Industries have a market price of $490.45, a face value of $1,000, and a yield to maturity of 9.8 percent. How many years is it until these bonds mature? Assume semiannual compounding.

Oil Wells offers 7.9 percent coupon bonds with semiannual payments and a yield to maturity of 4.55 percent. The bonds mature in seven years. What is the market price per bond if the face value is $1,000? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)