How many lines of symmetry does a 4 have

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?

Binh says the point of intersections is (0,-3) which statements identify the errors binh made , check all that apply

Typically a point in a three dimensional cartesian coordinate system is represented by which of the following answers in the picture !