A rectangular room is three feet shorter than it is longer. If the perimeter is 42 feet, find the dimensions of the room.

This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.

Two numbers have a sum of -19. one number is x. what expression represents the other number?

Simplify the following expression 48^1/2