Dickson, Incorporated, has a debt-equity ratio of 2. The firms weighted average cost of capital is 10 percent and its pretax cost of debt is 7 percent. The tax rate is 22 percent.

a.	What is the companys cost of equity capital? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)
b.	What is the companys unlevered cost of equity capital? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)
c.	What would the companys weighted average cost of capital be if the company's debt-equity ratio were .50 and 1.00? (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.)