Let a pack of movie pass by Cinema A be represented with a,
and a pack of movie pass by Cinema B be represented with b.
So,
[tex]\begin{gathered} 12a=66 \\ \text{Divide both sides by 12, we get} \\ a=\frac{66}{12}=\text{ 5.5 = \$5.50} \end{gathered}[/tex][tex]\begin{gathered} 5b\text{ =28} \\ \text{Divide both sides by 5, we get} \\ b=\frac{28}{5}=5.6=\text{ \$5.60} \end{gathered}[/tex]Hence, the cost per pack of movie pass by Cinema A is $5.50, while the cost per pack of movie pass by Cinema B is $5.60.
Cinema A offer per pack of movie pass is cheaper compare to Cinema B price.
So, 5.60 - 5.50 = 0.10
You save $0.10 per movie pass if you choose the cheaper offer ( Cinema A offer)