Find a ∩ b if a = {-1, 2, 5, 8, 11} and b = {2, 4, 6, 8}.

The circumference of a circle is 5 pi cm. what is the area of the circle?

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15