The market capitalization rate of ABC $\text{'}$s stock is $10\%.$ If its expected ROE is $12\%$ and its plow$-$back ratio is $40\%,$ its P$/$E ratio will be $q,($Hint: Although not shown in lecture slides, there is a formula for PE ratio of a stock based on its ROE, market capitalization rate and plowback ratio in your textbook.$)$