[tex]\begin{gathered} De\text{ volume of each gumball is} \\ Volume_{\text{gumball}}=\frac{4}{3}\pi r^3 \\ \\ \text{ we get 3 gumballs, thus the total volume is} \\ V=4(\frac{4}{3}\pi r^3) \\ V=\frac{16}{3}(3.14)(6)^3 \\ V=\frac{50.24\cdot216}{3} \\ V=\frac{1131.84}{3} \\ \\ V=377.28 \\ \\ \text{The answer is 377.24 mm}^3 \end{gathered}[/tex]