Rumolt Motors has 38 million shares outstanding with a share price of $10 per share. In addition, Rumolt has issued bonds with a total current market value of $503 million. Suppose Rumolt's equity cost of capital is 12%, and its debt cost of capital is 8%. a. What is Rumolt's pre-tax WACC? b. If Rumolt's corporate tax rate is 35%, what is its after-tax WACC? a. What is Rumolt's pre-tax WACC? Rumolt's pre-tax WACC is%. (Round to two decimal places.)