I want to know to find the domain and range

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

Factor the polynomial by its greatest common monomial factor.

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers?