Taking Math 31 was the best thing I did I ever did in HS... made Math 113 and 115 a breeze. Those two courses were what pushed me up onto the Dean's list my first year. If only it were that easy now
Switching from HS to Uni was a nasty shock for me. I learned my lesson though, leaving stuff to the last minute doesn't give me good scores anymore

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Good luck!
-Richer