ABC Corporation issued $25 million (par value) of bonds to fund a capital expansion project. The bonds were 4.4 percent semiannual bond and currently sells for 104 percent of its face value and has 15 years to maturity. The companys tax rate is 32 percent. a. What is the pretax cost of debt? b. What is the after-tax cost of debt? c. In addition to the $25 million bond issue, the company has a second debt issue on the market, a 3.8 percent semi-annual bond with 5 years left to maturity; the book value of this issue is $10 million, and the bonds sell for 90 percent of par. What is your best estimate of the after-tax cost of debt now? please show all work and excel calculations.