Joylin, Incorporated, has equity with a market value of $15.4 million and debt with a market value of $5.9 million. Treasury bills that mature in one year yield 4 percent per year and the expected return on the market portfolio is 11 percent. The beta of the companys equity is 1.15. The firm pays no taxes.

a.	What is the company's debt-equity ratio? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)
b.	What is the firms weighted average cost of capital? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)
c.	What is the cost of capital for an otherwise identical all-equity firm? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)