You are considering a new investment. The rate on T$-$bills is $3\mathrm{.}3\%$ and the return on the S&P $500$ is $8\mathrm{.}5\%.$ You have measured the non$-$diversifiable risk of the investment you are considering to be $\mathrm{.}7.$ What rate of return will you require on the investment? Solve using Ra $-$ Rf $=$ beta$($Rm$-$Rf$)$