Which term is on both sides of the equal sign? Since it’s on both sides of the equal sign, you can cancel it out. What is the expression after canceling out the common term?

If the angle bisectors of a pair of opposite angles of a quadrilateral are the opposite sides of a parallelogram formed by the two angle bisectors and two sides of the quadrilateral, is the quadrilateral always a parallelogram? explain your answer.

The length of a lap is 15 meters. if lisa wants to swim 450 meters this week,how many laps must she swim

Write an expression that is equivalent to ( 3+14)+27.