Using semiannual compounding, find the prices of the following bonds. a. A 8.6%,15-year bond priced to yield 6.2%. b. A 7.4%,10-year bond priced to yield 9.8%. c. A 11.8%,20-year bond priced at 9.4%. 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)