6 The police department uses a formula to determine the speed at which a car was going when the driver applied the brakes by measuring the distance of the skid marks The equation d 0 0018r models the distance d in feet traveled after applying the brakes in a car moving r miles per hour r is the speed of the car How long will the skid marks be if the car is traveling 64 52 mph Round your answer to the nearest hundredth of a foot length of skid feet