2x + y = -2
x + y = 5
the x-coordinate of the solution to the system shown is

Find the value of x for which abcd must be a parallelogram -9-6x x-30

The diagonals of a quadrilaretral intersect at (-1,4). one of the sides of the quadrilateral is bounded by (2,7) and (-3,5) determine the coordinates of the other side in order for the quadrilaretral to be a square.

Dots sells a total of 279 t-shirts ($2) and shorts ($4). in april total sales were $670. how many t-shirts and shorts did dots sell?