92.5 - 100 = A 89.5 - 92.5 = A- 86.5 - 89.6 = B+ 82.5 - 86.5 = B 79.5 - 82.5 = B- ... 59.5 - 62.5 D- less then 59.5 = E (or F, but usually E)
30% is a horrible grade, and nothing near it is anything close to passing. (note to others, these are rounded so you don't have to deal with the .5's and can just say "92" or "87", but I just usually remember with the .5's)
Anyway, I took my exams a few weeks ago, I can't remember what I got on the ones that had tests ... but I got A A A- A- in the classes, so I must have done pretty well (: