Jerry is buying food for a crew that is helping him move. He went to Burger King and told the person at the counter to give him as many burgers and fries as he could get for $25. The receipt said he purchased 30
items and paid $25. If a burger is $1 and fries are $0.75, how many of each did he get?

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.