just need (a3)

You are analyzing the after-tax cost of debt for a firm. You know that the firm's 12-year maturity, 9.00 percent semiannual coupon bonds are selling at a price of $868.48. These bonds are the only debt outstanding for the firm. (a1) Your answer is correct What is the current YTM of the bonds? (Round final answer to 2 decimal places, 6.8. 15.25%.) YTM 11 96 e Textbook and Media Attempts: 1 of 3 used (a2) Your answer is correct What is the after-tax cost of debt for this firm if it has a marginal tax rate of 34 percent? (Round intermediate calculations to 4 decimal places, e.g. 1.2514 and final answer to 2 decimal places, e.g. 15.25%.) After-tax cost of debt 7.26 e Textbook and Media Attempts: 1 of 3 used (a3) What is the current YTM of the bonds and after-tax cost of debt for this firm if the bonds are selling at par? (Round intermediate calculations to 4 decimal places, e.g. 1.2514 and final answers to 2 decimal places, e.g. 15.25%.) YTM % After-tax cost of debt de