Donner has decrease toy production 10%. Toy production was 400 toys. Which equation represents the new toy production? A. t=(0.8)400
B. t=(0.1)400
C. t=(.2)400
D. t=(0.9)400

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.)

What properties allow transformation to be used as a problem solving tool

Sum is 17 and their difference is 3