Steve sells cars. His monthly salary is $\$1500$. He gets a commission of $\$500$ for each car he sells. If he wants to make $\$8500$ this months, how many cars would he have to sell ?

Question

$\begin{array}{1 1} a)\;10 \\ b)\;12 \\ c)\; 14 \\ d)\;16 \end{array} $