Use the following information to answer questions #$9$ and #$10.$

What is the expected return on a portfolio that is $70\%$ invested in A and $30\%$ invested in $B?$

A$)14\mathrm{.}13\%$

B$)15\mathrm{.}92\%$

$E(r)=0\mathrm{.}7(0\mathrm{.}650\mathrm{.}3+0\mathrm{.}350\mathrm{.}1)+0\mathrm{.}3(0\mathrm{.}650\mathrm{.}05+0\mathrm{.}350\mathrm{.}2)$

$($C$)19\mathrm{.}18\%$

D$)22\mathrm{.}47\%$

The risk free rate is $5\%.$

A$)9\mathrm{.}25\%$

$($B$)12\mathrm{.}75\%$

C$)14\mathrm{.}50\%$

D$)16\mathrm{.}33\%$