Shadow Corp. has no debt but can borrow at 5.7 percent. The firms WACC is currently 8.1 percent and the tax rate is 21 percent.

a. What is the companys 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 25 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 40 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 25 percent debt, what is the companys WACC? (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 40 percent debt, what is the companys WACC? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)