Last weekend, emma solf lemonade at a hard sale. the function p(c)=.50c-9.96 represented the profit, p(c),emma earned selling c cups of lemonade. sales were strong so dhe raised the price for this weekend by 25 cents per cup which function represent her profit for this weekend

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.