Rogot Instruments makes fine violins and cellos. It has $1.1 million in debt outstanding, equity valued at $2.2 million and pays corporate income tax at rate 34%.

Its cost of equity is13% and its cost of debt is 5%.

a. Rogot's pretax WACC is ____%. (Round to two decimal places.)

b. Rogot's (effective after-tax) WACC is ___%.(Round to two decimal places.)