Jakea has 45 candies. She needs at least 72 candles. The candies she wants are sold in boxes of 9 What is the least number of boxes that Jakea needs to buy

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