The figure below shows a shaded rectangular region inside a large rectangle: a rectangle of length 10 units and width 5 units is shown. inside this rectangle is another rectangle of length 6 units and width 3 units placed symmetrically inside the larger rectangle. the smaller rectangle is shaded gray. what is the probability that a point chosen inside the large rectangle is not in the shaded region?

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.