Susanna spends a total 0f 47 minutes on her project. how many more minutes than susanna does abby spend working? draw a number line to model the problem, and write an equation to solve.

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.