(Individual or component costs of capital)Compute the cost of capital for the firm for the following:

a. Currently bonds with a similar credit rating and maturity as the firm's outstanding debt are selling to yield 7.84 percent while the borrowing firm's corporate tax rate is 34 percent.

b. Common stock for a firm that paid a $1.08 dividend last year. The dividends are expected to grow at a rate of 4.4 percent per year into the foreseeable future. The price of this stock is now $24.68.

c. A bond that has a $1,000 par value and a coupon interest rate of 12.5 percent with interest paid semiannually. A new issue would sell for $1,145 per bond and mature in 20 years. The firm's tax rate is 34 percent.

d. A preferred stock paying a dividend of 7.6 percent on a $109 par value. If a new issue is offered, the shares would sell for $86.38 per share.