Askyscraper is 1,150 feet above ground level. it extends 35 feet below ground level. what is the total length of the skyscraper from top to bottom?

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