Joseph and his children went into a movie theater where they sell bags of popcorn for $7.50 each and pretzels for $4.75 each. Joseph has $95 to spend and must buy no less than 16 bags of popcorn and pretzels altogether. If xx represents the number of bags of popcorn purchased and yy represents the number of pretzels purchased, write and solve a system of inequalities graphically and determine one possible solution.