Final answer:
The volume of the indium is 2.99 cm³.
Step-by-step explanation:
To calculate the volume of the indium, we can use the formula:
V = m / p
Where V is the volume, m is the mass, and p is the density.
Substituting the given values:
V = 21.93g / 7.31g/cm³ = 2.99cm³
Therefore, the volume of the indium is 2.99 cm³.