please help!! i rate well and fast. also please follow instruction on rounding . thank you

Rogot instruments makes fine violins and cellos It has $1 1 million in debt outstanding, equity valued at $3 2 million and pays corporate income tax at rate 21%. Its cos of equity is 10% and its cost of debtis 6% a. What is Rogot's pre-tax WACC? b. What is Rogots (etective after-tax) WACC? a. What is Rogot's pre-tax WACC? Rogot's pre-tex WACC 18 % (Round to two decimal places) b. What is Roots (etfective after-tax) WACC? Rogers (offective after-tax) WACC is % (Round to two decimal places)