For a given term structure, you are given the following information about two bonds that are re- deemable at par and have face amount $100, and coupons payable semi-annually. Bond 1: Coupon rate 4% per year, price $85.12 Bond 2: Coupon rate 10% per year, price $133.34 Find the yield-to-maturity for a 10-year zero coupon bond.