Sandy drinks 12 liters of water every week. There are approximately 19 liters in 5 gallons. Which amount is closest to the number of gallons of water Sandy drinks in 4 weeks?

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.