This year, a farmer planted 400,000 corn stalks. last year, the farmer planted 276,650 corn stalks. how many more corn stalks did the farmer plant this year then last year.

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.