Express the Volume of the Fish Tank in Scientific Notation $9 \times 10 ^ { 9 } \mathrm {~mm} ^ { 3 }$

Multiple Choice

Express the volume of the fish tank in scientific notation.

A) $9 \times 10 ^ { 9 } \mathrm {~mm} ^ { 3 }$
B) $1.8 \times 10 ^ { 10 } \mathrm {~mm} ^ { 3 }$
C) $9 \times 10 ^ { 10 } \mathrm {~mm} ^ { 3 }$
D) $9 \times 10 ^ { 12 } \mathrm {~mm} ^ { 3 }$
E) $4.5 \times 10 ^ { 9 } \mathrm {~mm} ^ { 3 }$