Which expressions are equivalent to 5x-15? check all that apply 5(x+15) 5(x-3) 4x+3y-15-3y+x -7y-6x-8y+x -20-3x+5+8x

Antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

Thelime contains the point(-3,0) and parallel x-3y=3( show all work)

Is a positive integer raised to a negative power always positive