A 25-year maturity bond has a 8% coupon rate, paid annually. It sells today for $887.42. A 15-year maturity bond has a 7.5% coupon rate, also paid annually, It sells today for $899.5. A bond market analyst forecasts that in five years, 20-year maturity bonds will sell at yields to maturity of 9% and that 10 -year maturity bonds will sell at yields of 8.5%. Because the yield curve is upward-sloping, the analyst believes that coupons will be invested in short-term securities at a rate of 7%. Required: a. Calculate the expected rate of return of the 25 -year bond over the five-year period. (Do not round intermediate calculations. Round your answer to 2 decimal places.) b. What is the expected return of the 15-year bond over the five-year period? (Oo not round intermediate calculations. Round your answer to 2 decimal places.)