Question 885921
You need 80% out of a possible 300 points (exams are 75, 75, final=150), or 240 points for a B
So far, you have 55 + 72 for a total of 127.  You'll need 240 - 127 for a B.
240 - 127 = 113 points.
113/150 = 75.33% on the final.
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Study hard!