ANSWER
337,153,536 mm³
EXPLANATION
As stated in the question, the volume of a cube of side length s is,
[tex]V=s^3[/tex]If the side length of the cube is s = 696 mm, then the volume is,
[tex]V=696^3mm^3=337,153,536mm^3[/tex]Hence, the volume of the cube is 337,153,536 mm³.