You are analyzing the after-tax cost of debt for a firm. You know that the firms 12-year maturity, 15.00 percent semiannual coupon bonds are selling at a price of $1,303.06. These bonds are the only debt outstanding for the firm.

What is the current YTM of the bonds?

What is the after-tax cost of debt for this firm if it has a marginal tax rate of 34 percent?

What is the current YTM of the bonds and after-tax cost of debt for this firm if the bonds are selling at par?