4 - (7 + 2) ÷ 3
pemdas please

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.)

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily