Ms. Wilson set up a pond water aquarium in the class. Ms. Wilson tells the class there are five different kinds of aquatic animals in the aquarium. There are caddis fly larvae, diving beetles, whirling beetles, dragonflies and tadpoles. Ms Wilson says one- twelve of the pond is dragon flies

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.