Multiply (5x+4)^2 it's making me write 20 characters so how's everyone's morning been so far?

If angle 2=3x +1 and angle 3=2x +4what is angle 2

On saturday a souvenir shop had 125 customers.sixty four percent of the costumers paid with a credit card. how many costumers paid with cash?

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.