Question

-Sally I need you to sit still while I trim you're bangs Sophia ordered.
Find the mistakes

Answer 1

It’s using the wrong your. Instead of using “Sally I need you to sit still while I trim YOUR bangs, Sophia ordered.” You’re means you are. Your means belonging to or associated to the person that the speaker is addressing.

Answer 2

Answer:

its meant to be your bangs not you're bangs

Explanation:

you're is you are

your is like something you own