need A and B please

13-1 (similar to) Avicorp has a $145 milion debt we outstanding with a 625 coupon role. The debt has semanal coupons, the next coupon is due in six months, and the debt matures in five years. It is currently priced of per value a. What is Avicorp's pre-tax cost of debt? Note Compute the effective annual retum b. Artcorp faces 40% tax rate what is its wher-tax cost of debt? Note Assume that the fem will always be able to reis werest tax whild a. The cost of debitis per year Round to four decimal places) Enter your answer in the answer box and then click Check Answer CA part remaining >> o