First math test 143

Flunked! Yup, that's right I flunked it. I am not the only one however, the class average as a whole was 48%!!!! Only 3 students out of 24 actually passed the test and the highest grade was a 88%! To make along story short, out teacher was steaming mad at us... And gave us the exact test again buy time it was a take home test. We were allowed to use notes, etc... Any means to pass the test. At the end of class she told us we had better get serious about Math. Needless to say I don't like my teacher and I dont like the way she teaches. I don't understand her at all.