Emmys Communications has bonds currently trading at $950 each. The bonds pay coupons semiannually and mature in 10 years. The coupon rate on the bonds is 4% and the firm is in the 21% tax bracket. What is the firms cost of debt? What is the after-tax cost of debt? Give any formulas with the abbreviations and also solving process with the real numbers. Also give any inputs for TVM solver.