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At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.