13. If g(x) = 0.35x is a function that represents the cost for a vaccine given at a children's health
clinic, what is a reasonable domain for g?
I
A.
the set of all whole numbers
B.
all real numbers greater than 0
C. the set of all integers
D. the set of all real numbers

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.