I need help on this assignment I’ve just posted the instructions but I hope for someone to be able to go over it with me. Thank you

The expression 6x2 gives the surface area of a cube, and the expression x3 gives the volume of a cube, where x is the length of one side of the cube. find the surface area and the volume of a cube with a side length of 6m

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality