5 A jewelry box has 10 items. Of those, half
are necklaces. Two-fifths of
the others are bracelets.
The rest are rings. How
many rings are there?

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.