Which is the sum of the PLS HELP. two smallest angle in a right triangle A. 30 degrees
B. 45 degrees
C.90 degrees
D. 180 degrees
E.360 degrees

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.)

Find the area of a parallelogram with base 15 yards and height 21 2/3

What is mean median mode and range?