Rocco is doing an internship with a local carpenter. he is making $11.50 an hour. his total check for the month of november was $879.75. how many hours did rocco work in november? put a number model and an estimate of the answer. i will mark branliest : )

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