Whoever solves this correctly will get the brainiest

Find the slope of the line passing through a pair of points

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

Suppose the equation ||x-a|-b|=2008 has 3 distinct real roots and a not =0. find the value of b.