Need pls. can someone show me how to solve it

The volume of a cube is 8 in to the 3rd power. how long is each side?

Which of the following equations is of the parabola whose vertex is at (2, 3), axis of symmetry parallel to the y-axis and p = 4? a.)y-3 = 1/16 (x-2)^2 b.)y+3 = -1/16 (x+2)^2 c.)x-2 = 1/16 (y-3)^2

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?