Amanufacturer uses a tank to supply water to his machines while they are working. when the machines are on the tank loses 1.5 gallons of water an hour at the same time 1 gallon of water is pumped into the tank from a well. write an equation that models the amount of water (w) in the tank for any hour (h) that the machines are on. the tank starts full with 150 gallons of water in it.

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.