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 10.7 percent. Interest payments are $53.50 and are paid semiannually. The bonds have a current market value of $1,126 and will mature in 10 years. The firm's marginal tax rate is 34 percent.

b. A new common stock issue that paid a $1.78 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 $27.92.

c. A preferred stock that sells for $133, pays a dividend of 8.5 percent, and has a $100 par value.

d. A bond selling to yield 11.3 percent where the firm's tax rate is 34 percent.