Usually 1 of them is because I change my answer from correct during timed to incorrect during untimed. Do I redo these sets? I already used up all 12.

If so, join our 140s study group where we go over hard questions in the core curriculum together 🥐

You're invited to my new group '140 —> 180’ on GroupMe.

https://groupme.com/join_group/84476376/AOQkuYi9

Please help