Rumolt Motors has 69 million shares outstanding with a price of $12 per share. In addition, Rumolt has issued bonds with a total current market value of $735 million. Suppose Rumolt's equity cost of capital is 12%, and its debt cost of capital is 5%. a. What is Rumolt's pretax weighted average cost of capital? b. If Rumolt's corporate tax rate is 21%, what is its after-tax weighted average cost of capital? a. What is Rumolt's pretax weighted average cost of capital? Rumolt's pretax weighted average cost of capital is %. (Round to two decimal places.)