If each bag of cat food feeds 5 cats per month at the shelter, how many bags do they need if they have 20 cats? explain how you got your answer.

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.