Athief steals an atm card and must randomly guess the correct 6 digit pin code from a 40 keypad repetition of digits is allowed what is the probability of a correct guess on the first try the number of possible codes is what

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.