Rumolt Motors has 54 million shares outstanding with a share price of $27 per share. In addition, Rumolt has issued bonds with a total current market value of $417 million. Suppose Rumolt's equity cost of capital is 9%, and its debt cost of capital is 5%. a. What is Rumolt's pre-tax WACC? b. If Rumolt's corporate tax rate is 25%, 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.)