Jacque Ewing Drilling, Inc. has a beta of 1.4 and is trying to calculate its cost of equity capital. If the risk-free rate of return is 6 percent and the market risk premium is 7 percent, then what is the firm's after-tax cost of equity capital if the firm's marginal tax rate is 40 percent? (Round to two decimal places) O 13.40% 18.60% O 15.80% 11.20%