The length of a rectangular wall is x units, and its height is (x - 3) units (see figure). Find an expression for the perimeter of the wall.

Franco wants to double the volume of the cone. what should he do?

Which of the following points is collinear with (-2,1) and (0,3)

Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x