For a school play the teacher asked the class to set up chairs in 20 rows with 25 chairs in each row . after setting up all the chairs they were 5 chairs short .how many chairs did the class set up

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system

you need to rotate this triangle about the origin 270 degrees clockwise to create the full square.