Bis the midpoint of segment ac; ab = 8v, and ac = 2v + 42. what is bc?

Which set of reflections would carry trapezoid abcd onto itself? a) x-axis, y=x, y-axis, x-axis b) x-axis, y-axis, x-axis c) y=x, x-axis, x-axis d) y-axis, x-axis, y-axis, x-axis

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air