Alec and kurt are racing to see who can get his community service hours for scouting completed first. alec, who has already completed 50 hours, plans to volunteer for 3 hours per week going forward. kurt hasn't started yet, but plans to dedicate 8 hours per week to his volunteer project from now on. before too long, the boys will be tied, with the same number of volunteer hours. how long will that take?

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.