Identify the relation that is a function.
o last name to phone number
o
city name to state name
o number of apples purchased to the cost of the apples
o days of the week to the months of the year

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

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.

If jklm is a trapezoid, which statements must be true?