8 = 1/13v solve this and pretty please show some simple steps

Need this asap if anyone can i would be very grateful. if you could show workings that would really

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?

Find measure angle 1 and measure angle 3 in the kite the diagram is not drawn on the scale