Jaden rides his go -kart around the track for 5 minutes and completes 40 laps. He wants to know how many laps he can complete when riding for 12 and 18 minutes if he keeps the same rate how many laps does jaden complete in 1 minute? Find the unit rate.

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.