Solve the Problem $\mathrm { T } = 0.07 \mathrm { D } ^ { 1.5 }$

Solve the problem.
-The formula $\mathrm { T } = 0.07 \mathrm { D } ^ { 1.5 }$ can be used to approximate the duration of a storm, where is the time in hours and D is the diameter of the storm in miles. A storm that is $16.2$ miles in diameter is heading toward a city. How long can the residents of the city expect the storm to last? Round you answer to the nearest hundredth of an hour.

A) $5.79 \mathrm { hr }$
B) $6.09 \mathrm { hr }$
C) $4.56 \mathrm { hr }$
D) $3.99 \mathrm { hr }$