R 33: Cost of Capital A firm with a marginal tax rate of 40% has a weighted average cost of capital of 7.11%. The before-tax cost of debt is 6%, and the before-tax cost of equity is 9%. The weight of equity in the firm's capital structure is closest to: A) 27%. B) 65%. C) 89%. 80 Which of the following statements is most likely true? A) The investment opportunity schedule, for a given company, is upwar sloping because as a company invests more in capital projects, the returr from investing keen on increasing