The histogram gives information about the heights, in metres, of trees in a park. The histogram is incomplete. 15% of the trees in the park have a height between 2.5m and 5m. None of the trees in the park have a height greater than 20m. Work out the total number of trees in the park

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 produces a rationale number when multiplied by 1/5

Evaluate 3(a + b + c)squared for a = 2, b = 3, and c = 4. a. 54 b. 243 c.729 add solution .