To find the surface area of a cube, you can use the formula:
\[ \text{Surface Area} = 6a^2 \]
where \(a\) is the length of one side of the cube.
In your case, the cube has sides of length 9 (as indicated by "9x9x9"). Therefore:
\[ \text{Surface Area} = 6 \times (9^2) = 6 \times 81 = 486 \]
The surface area of the cube is \(486\) square units.