Give reason sign and symptoms are not same

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

Graph the linear function using the slooe and y intercept

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?