The floor of the commons room at King Middle School is in the shape of a square with side lengths of x 2y3 feet. The new tile is going to be put on the floor of the room. Find the area of the floor

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min