Answer:
Her approximate BAC is about 0.06%.
No.
Explanation:
First off, it is highly illegal that she consumes as much as she did.
At a person her weight, drinking 3 alcoholic beverages would result in her reaching a BAC level of about 0.06%.
If FSH is located in Pennsylvania, then the required BAC level to get a DUI would be 0.08%.
0.06% is lower than this, therefore she would not receive a DUI, but will most certainly receive some sort of punishment for underage drinking.