20 POINTS Rochelle is taking soil samples. For each of the samples she takes, she will use 0.2 of the sample for testing. Match the sample sizes to the amounts that will be used for testing.

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.)

Which of the following contains a variable?

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