Avicorp has a $13.2 million debt issue outstanding, with a 6.2% coupon rate. The debt has semiannual coupons, the next coupon is due in six months, and the debt matures in five years. It is currently priced at 93% of par value. a. What is Avicorp's cost of debt? Note: Compute the effective annual return.(round up to four decimal places) b. If Avicorp faces a 40% tax rate, what is its after-tax cost of debt?(round up to four decimal places) Note: Assume that the firm will always be able to utilize its full interest tax shield.