a healh Insurance plan cost is $150 each month plus an extra $25 for each doctors visit Which equation below models the total yearly cost see of the plan as a function of the number of doctors visits n

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