You are analyzing the after-tax cost of debt for a firm. You know that the firm's 12-year maturity, 12.00 percent semiannual coupon bonds are selling at a price of $1,401.46. 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