This relates only to some quizzes, and only to question 2(c).

If you obtained no credit in 2(c), but used the correct method, and your only error was in having an incorrect SE from 2(b), you may obtain up to the full credit for 2(c) if you return your quiz.
The extra credit you will get will depend on exactly what you wrote to show your method.
BUT: as with all returned exams : DO NOT WRITE OR ADD ANYTHING NOW.

Sections AE/AD: Jennifer has this under control, and has (I believe) already adjusted quiz scores appropriately,
Sections AC/AF: Kevin (to whom many thanks for pointing out this grading error), has made arrangements via his substitute (Derek) to recollect your quizzes, and go through them when he returns, and to correct scores.
Sections AA/AB: If you wish to return your quiz-3 for possible extra points, please give it to me, or to your replacement TA (Sabino) to give to me, no later than THURSDAY SECTIONS, and I will deal with these quizzes.

To obtain extra credit:
It must be exactly clear what you did originally write, and how it was graded. Again, do NOT make any marks on your quiz. If you already have, underline changes in a quite different color -- NOT red, and NOT whatever you wrote either your quiz or any subsequent corrections in.