If the after-tax rate of return for a cash flow series is 11.2% and the corporate effective tax rate … Show more If the after-tax rate of return for a cash flow series is 11.2% and the corporate effective tax rate is 39%, the approximate before-tax rate of return is closest to: a. 18.4% b. 6.8% c. 28.7% d. 5.4% • Show less