Question 12 (0.2 points) A firm has an effective (after-tax) cost of debt of 5%, and its weight of debt is 40%. Its equity cost of capital is 12%, and its weight of equity is 60%. Calculate the firm's weighted average cost of capital (WACC). [Enter your answer as a percentage rounded to two decimal places.] Your Answer: Question 15 (0.2 points) In which one of the following situations would the payback method be the preferred method of analysis? O1) A project that can easily be expanded 2) Two mutually exclusive projects 3) A proposed expansion of a firm's current operations 4) Different-sized projects 5) Investment funds available only for a limited period of time