After math class, Heidi looked for a classmate to walk with, but the other students rushed out too quickly. She found the lesson on algebra confusing and wanted to talk about it with a classmate. Now, Heidi is worried she won't be able to complete her homework.

Heidi is worried about her homework because she found the algebra lesson confusing and wanted to discuss it with a classmate. This suggests she does not understand algebra, not that she has too much homework or no friends.

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