Aveterinarian surveys 26 of his patrons. he discovers that 14 have dogs, 10 have cats, and 5 have fish. four have dogs and cats, 3 have dogs and fish, and one has a cat and fish. if no one has all three kinds of pets, how many patrons have none of these pets?

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.