12. Huesenberg Products has a target debtequity ratio of 3 . Its WACC is 13 percent, and the tax rate is 35 percent. a. If Huesenberg's cost of equity is 18 percent, what is its pretax cost of debt? b. If instead you know that the after-tax cost of debt is 7 percent. what is the cost of equity? 12. Huesenberg Products has a target debtequity ratio of 3 . Its WACC is 13 percent, and the tax rate is 35 percent- a. If Huesenberg's cost of equity is 18 percent, what is its pretax cost of debt? b. If instead you know that the after-tax cost of debt is 7 percent, what is the cost of equity