The value in dollars, v (2), of a car after 2 years is represented by the equation v (2) = 41000 (0.80)". To the nearest dollar, how much more is
the car worth after 3 years than after 4 years?

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.