Using semiannual compounding, find the prices of the following bonds: a. A 8.8%, 15-year bond priced to yield 6.4%. b. A 5.7%, 10-year bond priced to yield 8.1%. c. A 12.9%, 20-year bond priced at 10.5% 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 $ 1229.24. (Round to the nearest cent.) b1. Using semiannual compounding, the price of the bond is $ 837.64. (Round to the nearest cent.) c1. Using semiannual compounding, the price of the bond is $ . (Round to the nearest cent.)