Arun and his children went into a movie theater where they sell bags of popcorn for
$8 each and drinks for $5 each. Arun has $80 to spend and must buy a minimum of
11 bags of popcorn and drinks altogether. Also, he must buy no less than 2 bags of
popcorn. If a represents the number of bags of popcorn purchased and y represents
the number of drinks purchased, write and solve a system of inequalities graphically
and determine one possible solution.