Solve the Problem $\mathrm { A } ( \mathrm { x } ) = - 0.015 \mathrm { x } ^ { 3 } + 1.05 \mathrm { x }$

Multiple Choice

Solve the problem.
- $\mathrm { A } ( \mathrm { x } ) = - 0.015 \mathrm { x } ^ { 3 } + 1.05 \mathrm { x }$ gives the alcohol level in an average person's blood $x$ hrs after drinking 8 oz of 100 -proof whiskey. If the level exceeds $1.5$ units, a person is legally drunk. Would a person be drunk after 5 hours?

A) No
B) Yes