Help me please.. i will mark brainliest if correct

How far could you drive on 50 gallons of gas

What is the measure of one interior angle of a pentagon

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