Cassin Corporation sold $2.5 million worth of 20-year, 6.5% bonds on July 1, 20x3. The bonds will pay interest every December 31 and June 30. Required: a. What will be Cassin's total interest expense over the life of the bonds if the bonds are sold at 96? b. What will be Cassin's total interest expense over the life of the bonds if the bonds are sold at 96