The owners of the luray caverns in virginia conduct tours every 20 minutes. Each day in april the first tour is at 9 a. M. , and the last tour starts at 6 p. M. How many tours are there per day in april?.

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.