X=5 if you solve the equation 20=8x/2
Step-by-step explanation:
the volume of a cube is
side³.
since the volume is 27 m³, the individual side lengths are then the cubic root of 27 = 3 m.
the surface area is 6 squares of 3×3 = 9m², so in total
9 × 6 = 54 m²
First you had to remove parenthesis first.

Multiply by the numbers.

Final answer 



Hope this helps!
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-Charlie