You would like to estimate the weighted average cost of capital for a new airline business. Based on its industry asset beta, you have already estimated an unlevered cost of capital for the firm of 10%. However, the new business will be 22% debt financed, and you anticipate its debt cost of capital will be 6%. If its marginal corporate tax rate is 31% and effective tax rate is 20%.

Required:
What is your estimate of its WACC?