Kendall Corporation has no debt but can borrow at 7 percent. The firm's WACC is currently 12 percent, and there is no corporate tax. a. What is the company's cost of equity? Note: Do not round intermediate calculations and enter your answer as a percent rounded to the nearest whole number, e.g., 32. b. If the firm converts to 20 percent debt, what will its cost of equity be? Note: 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 45 percent debt, what will its cost of equity be? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16 . d. What is the company's WACC in parts (b) and (c)? Note: Do not round intermediate calculations and enter your answers as a percent rounded to the nearest whole number, e.g., 32