Ruiz Instructions Show Instructions 3.25 pts D Question 7 Given are the following data: Cost of debt-ro = 6%; Cost of equity = re = 12.1%; Marginal tax rate = 35%; and the firm has 50 percent debt and 50 percent equity. Calculate the after-tax weighted average cost of capital (WACC). O 7.1 percent 9 percent 8 percent O 5.9 percent