You are taking a multiple-choice test that has eight questions. each of the questions has three answer choices, with one correct answer per question. if you select one of these three choices for each question and leave nothing blank, in how many ways can you answer the question?

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