A manufacturer knows that their items have lengths that are skewed right, with a man of 7.6 inches and a standard deviation of 0.7 inches. If 39 items are chosen at random , what is the probability that their mean length is greater than 7.4.

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.