Calculate the following costs of capitals: a. A $1,000 par value bond with a market price of $940 and a coupon interest rate of 11 percent. Flotation costs for a new issue would be approximately 6 percent. The bonds mature in 6 years and the corporate tax rate is 23 percent. b. A preferred stock selling for $103 with an annual dividend payment of $9. The flotation cost will be $9 per share. The company's marginal tax rate is 23 percent. c. Retained earnings totaling $4.8 million. The price of the common stock is $73 per share, and dividend per share was $8.37 last year. The dividend is not expected to change in the future. d. New common stock for which the most recent dividend was $2.72. The company's dividends per share should continue to increase at a growth rate of 9 percent into the indefinite future. The market price of the stock is currently $59; however, flotation costs of $8 per share are expected if the new stock is issued. a. What is the firm's after-tax cost of debt on the bond? % (Round to two decimal places.) b. What is the cost of capital for the preferred stock? % (Round to two decimal places.) c. What is the cost of internal common equity? % (Round to two decimal places.) d. What is the cost of external common equity? % (Round to two decimal places.)