Problem 12-14 WACC CLO 3] Blue Bull, Inc., has a target debt-equity ratio of .81. lts WACC is 8.5 percent, and the tax rate is 34 percent. Required: (a) If the company's cost of equity is 12.1 percent, what is its pretax cost of debt?(Do not round intermediate calculations. Enter your answer as a percentage rounded to 2 decimal places (e.g., 32.16).) Pretax cost of debt (b) If the aftertax cost of debt is 5.2 percent, what is the cost of equity? (Do not round intermediate calculations. Enter your answer as a percentage rounded to 2 decimal places (e.g., 32.16).) Cost of equity