What is the formula for a ratio? Is the x-axis horizontal or vertical? Which points are on the y-axis (0, 6)?

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.

Acheetah can run 70 per hour. what is the speed in feet per hour

100 points and 1- -12=y-36 2- x/25=-25 3- -n=40