Using semiannual compounding, find the prices of the following bonds: a. A 9.3%,15-year bond priced to yield 7.1%. b. A 5.5%,10-year bond priced to yield 7.7%. c. A 12.9%,20-year bond priced at 10.7%. Repeat the problem using annual compounding. Then comment on the differences you found in the prices of the bonds. a1. Using semiannual compounding, the price of the bond is $ (Round to the nearest cent.)