Dusit is financed 26% by debt yielding 8.3%. Investors require a return of 15.3% on Dusits equity. a. What is the companys weighted-average cost of capital if the corporate tax rate is 21%? b. What would be the companys cost of capital if it were exempted from corporate tax? (For all the requirements, do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.