Need help quick, please.

Answer:
[tex]\frac{7}{8}[/tex]
Step-by-step explanation:
We know that the movie was [tex]3\frac{1}{2}[/tex] hours long, which is three hours and a half. So, the problem states that Lily only saw [tex]\frac{1}{4}[/tex]. We need to calculate the quarter of the duration of the movie.
[tex](3\frac{1}{2})\frac{1}{4}=\frac{7}{2}\frac{1}{4}=\frac{7}{8}[/tex]
This means that Lily only so seven eighths of an hour.
The correct answer is the second option.