A police car is located 50 feet to the side of a straight road. A red car is driving along the road in the direction of the police car and is 150 feet up the road from the location of the police car. The police radar reads that the distance between the police car and the red car is decreasing at a rate of 85 feet per second. How fast is the red car actually traveling along the road? The actual speed (along the road) of the red car is feet per second