An online book retailer recently decided to extend its business to audio books. The change

in strategy is regarded as risky by the market, hence the company$$s equity beta increased

to $2\mathrm{.}00.$ The current capital structure is $50$ percent debt and $50$ percent equity. The required return rate on the company$$s debt increased after re$-$evaluation of the company$$s

risk to $9\%.$ The corporate tax rate is $30\%,$ the risk free rate of return is $4$ percent, and the

return on the market portfolio is $7\%.$ What is the company$$s WACC after re$-$evaluation?