You are trying to determine the equity beta $($B$)$ of a privately held company, Summa Corporation, that is not required to publish its financial information. The average asset beta from a group of comparable companies is $1\mathrm{.}28.$ If Summa Corp has a debt$/$equity ratio of $30\%$ and the tax rate is $35\%$ what is its equity beta $($B$)?$ If the historical return over the past $30$ years of the S&P $500$ Index is $8\%$ and the risk$-$free rate $($as measured by the $10-$Year Treasury Note$)$ is $4\%,$ what is the equity cost of capital for Summa Corp? If Summa$$s debt trades at Treasuries plus $1\mathrm{.}25\%$ what is Summa$$s WACC?