Rogot Instruments makes fine violins and cellos. It has $1.1 million in debt outstanding, equity valued at $2.8 million, and pays corporate income tax at rate 39%. Its cost of equity is 14% and its cost of debt is 6%. a. What is Rogot's pre-tax WACC? b. What is Rogot's (effective after-tax) WACC? a. What is Rogot's pre-tax WACC? Rogot's pre-tax WACC is \%. (Round to two decimal places.) b. What is Rogot's (effective after-tax) WACC? Rogot's (effective after-tax) WACC is %. (Round to two decimal places.)