A20 foot ladder leans against a wall so that the base of the ladder is 8 feet from the base of the building. what angle does the ladder make with the ground?

Which expression is equivalent to 2x^2+7x+4?

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)