An artist is using blue and pink ribbon in her artwork. She has 63 cm of blue ribbon and 91 cm of pink ribbon.
She wants to cut the ribbon into pieces so each piece
is of equal length and as long as possible.
a) How long should she make each piece?

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.