Malkin Corp. has no debt but can borrow at 7.25 percent. The firm's WACC is currently 13 percent, and there is no corporate tax. What is Malkin's cost of equity? If the firm converts to 25 percent debt, what will its cost of equity be? (Do not round intermediate calculations. Enter your answer as a percentage rounded to 2 decimal places (e.g., 32.16).) If the firm converts to 55 percent debt, what will its cost of equity be? (Do not round intermediate calculations. Enter your answer as a percentage rounded to 2 decimal places (e.g., 32.16).) What is Malkin's WACC in part (b) and (c)? (Do not round intermediate calculations. Enter your answers as a percentage rounded to the nearest whole number (e.g., 32).)