Mandy is standing on the corner of 59th street and 15th street avenue. mark is standing on the corner of 35th street and 21st avenue. mark calls mandy and asks her to meet him at a spot halfway between their current locations. use the midpoint formula to find out where mark wants to meet. show your work

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.