What is the greatest common factor of 20, 50, and 30?

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)

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.