Answer:
B. E(s) = s^3 - 29.
Step-by-step explanation:
The amount of empty space [tex]E(s)[/tex] inside the cubic box is equal to the volume of the box minus the volume of the softball.
If the side length of the cubic box is [tex]s[/tex], and the volume of the softball is [tex]29in^3[/tex], then the amount of empty space [tex]E(s)[/tex] inside is
[tex]E(s) = s^3-29[/tex],
where [tex]s^3[/tex] is the volume of the cubic box.
Since it matches the equation we got above, choice B stands correct.