In the figure below, de is parallel to ab, ab has length 8 centimeters, be has length 5 centimeters, and ec has length 7 centimeters. what is the length of de rounded to the nearest tenth of a foot?

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 number completes the inequality? 2/3 < _ < 7/9

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)