Please answer 11-1, 11-2, 11-3

11-1 Everything is the same except that Yield to maturity is 7 percent 11-2 Everything is the same except that Pays $3, and price of $60 11-3 Everything is the same except that Selling at $40, Dividend of $2, rate of 5 percent 11-1 Wilhelmi Corporation has bonds outstanding. The bond's yield to maturity (before-tax cost of the bond) is 12.4 percent and the firm's tax rate is 40 percent What is the after-tax cost of the bond? 11-2 Wilhelmi Corporation has preferred stock outstanding. Each share of the pre ferred stock pays $4.20 and has a market price of $40 per share. What is the cost of the preferred stock? 11-3 The common stock of Wilhelmi Corporation is selling at $54 per share. It ex pects to pay a dividend of $4 per share and the dividend will grow at a rate of 9 percent per year. What is the cost of the common stock