AM    Midterm   Final Ex    Final Grade

2991    10          10            10
3105    2.5         -             1 
3178    9           9.5           9.5
3220    2           -             1
3254    -           0             0   
3256    4.5         6             5.5
3372    -           0             0 
3405    2           -             1  
3490    4           1             2 
3579    0           0             0