You must buy cupcakes and pizza for a party. each cupcake costs $1, and each pizza pie costs $8. you know that you need at least 9 pizzas so that each person can have at least 2 slices of pizza. in addition, you cannot spend more than $110. if you want to figure out how many cupcakes and pizza pies you can buy, what system of inequalities would you write?

Three students, javier, sam, and corrine, participated in a fundraiser where people donated a certain amount of money per lap that the student ran. each student also had some initial donations that were collected before the run. the equations that represent each student's total donation, y, based on the number of laps ran, x, is shown below. match each equation with the correct rate of change for that student.