Suppose that T-shirts, Inc.'s capital structure features 25 percent equity, 75 percent debt, and that its before-tax cost of debt is 8 percent, while its cost of equity is 12 percent. If the appropriate weighted average tax rate is 21 percent, what will be T-shirts' WACC? Multiple Choice 4.75 percent 7.74 percent 9.00 percent 7.20 percent