Shadow Corp. has no debt but can borrow at 7.2 percent. The firms WACC is currently 9 percent, and the tax rate is 21 percent.
a.	What is the firms cost of equity? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)
b.	If the firm converts to 20 percent debt, what will its cost of equity be? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)
c.	If the firm converts to 60 percent debt, what will its cost of equity be? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)
d-1.	If the firm converts to 20 percent debt, what will the company's WACC be? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)
d-2.	If the firm converts to 60 percent debt, what will the company's WACC be? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)