9. Fresh coffee is draining from an conical filter with a diameter(D) of 4 inches and a heigh(H) of 7 inches at a rate of 14.8 cubic inches per minute. It is draining into a coffee pot that has a diameter(C) of 4 inches. Assuming that no more water is being poured into the filter, find the following when the water level is 5 inches deep in the filter. (A) At what rate is the water level in the filter falling? (B) At what rate is the coffee level in the coffee pot rising?