Oliver starts with a collection of bricks in which the combined number of blue and green bricks is odd. Explain why he cannot end up with a combined number of blue and green bricks.

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.)

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form