Does the set of ordered pairs {(2, 100), (13, 13), (14, 5), (60, 4), (100, 1)} define a function?

The first side of a triangle measures 5 in less than the second side, the third side is 3 in more than the first side, and the perimeter is 17 in. how long is the third side? if s represents the length of the second side, which of the following represents the length of the third side? s-5 ws-2 s+ 3 next question ask for turn it in

The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.

Given the median qr and trapezoid mnpo what is the value of x?