Y=-2x+1, y=2x-3 Solve the system of linear equations by graphing. List the solution, and check the solution. If another method is used points will be deducted. I don't understand how to do this.

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.)

Factor. 8x2y2 – 4x2y – 12xy 4(8x2y2 – x – 12xy) 4(2xy – 4x2y – 12xy) 4x2y2(2xy – xy –3) 4xy(2xy – x – 3)

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)