My friend cheated on an exam last week, tomorrow is report card , is it too late if I tell on her?

So last week , my friend lets call her "A" cheated on our final exam. She
Copied answers from my best friend lets call her "H" she whispered to H and H was very annoyed so she showed her answers. Tomorrow is report day, is it too late to tell on her??
Asked Nov 25, 2015

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