Solve
-If the Density of a Substance Is $5.21 \times 10 ^ { - 4 }$

Multiple Choice

Solve.
-If the density of a substance is $5.21 \times 10 ^ { - 4 }$ tons per cubic foot, what would be the mass of $8.51 \times 10 ^ { - 3 }$ cubic feet of this substance. (Use the formula $D = \frac { M } { V }$ and round to the nearest hundredth, if necessary.)

A) $4.43 \times 10 ^ { - 7 }$ tons
B) $4.43 \times 10 ^ { - 6 }$ tons
C) $0.44 \times 10 ^ { - 6 }$ tons
D) $4.43 \times 10 ^ { - 5 }$ tons