Omega Corporation has 11.6 million shares outstanding, now trading at $49 per share. The firm has estimated the expected rate of return to shareholders at about 11%. It has also issued long-term bonds at an interest rate of 8% and has a debt value of $170 million. It pays tax at a marginal rate of 21%. a. What is Omega's after-tax WACC? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) After-tax WACC % b. What would WACC be if Omega used no debt at all? (Hint: For this problem, you can assume that the firm's overall beta (BA) is not affected by its capital structure or by the taxes saved because debt interest is tax-deductible.) (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) WACC %