Question 6 12.5 pts A firm uses only debt and equity in its capital structure. The firm's weight of equity is 35 percent. The firm's cost of equity is 14 percent and it has a tax rate of 30 percent. If the firm's WACC is 11 percent, what is the firm's before-tax cost of debt? 3.00 percent 13.41 percent 5.50 percent 6.10 percent