(Individual or component costs of capital) Compute the cost of capital for the firm for the following: a. A bond that has a $1,000 par value (face value) and a contract or coupon interest rate of 10.9 percent. Interest payments are $54.50 and are paid semiannually. The bonds have a current market value of $1,128 and will mature in 10 years. The firm's marginal tax rate is 34 percet. b. A new common stock issue that paid a $1.84 dividend last year. The firm's dividends are expected to continue to grow at 7.5 percent per year, forever. The price of the firm's common stock is now $27.39. c. A preferred stock that sells for $144, pays a dividend of 9.7 percent, and has a $100 par value. d. A bond selling to yield 12.3 percent where the firm's tax rate is 34 percent. a. The after-tax cost of debt is %. (Round to two decimal places.)