Dear Daniel,

 You got 77 (out of 100) in the makeup exam

 
Here is what you got wrong:

#1 Should be x=t, y=0,z=0 or (x,y,z)=(t,0,0): -5 points

#2: started correctly but did not finish: -5 points

#6: right way, messed up calculations: -3 points

#7: wrong way:        -10 points

Since this is higher than 53 (that you got in midterm 1) 
your score is 77

 Best wishes,

  Dr. Z.