Starset, Inc., has a target debt-equity ratio of 0.9. Its WACC is 10 percent, and the tax rate is 32 percent. If the company's cost of equity is 14.5 percent, what is the pretax cost of debt? If instead you know that the aftertax cost of debt is 6.9 percent, what is the cost of equity? If instead you know that the aftertax cost of debt is 6.9 percent, what is the cost of equity