In a different dimension, cows have x+3 legs, with 3 toes on each leg. chickens have 2x-4 legs, with 7 toes on each leg. if your farm only has two cows and one chicken, what is the expression for how many animal toes are there in total (not including yours)? how do you solve this?

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.