Dear  Kishan,

 Please consult

https://sites.math.rutgers.edu/~zeilberg/Hist21/mt2S.pdf

for the full solutions.


You got  107 points (out of 120)


Here is what you got wrong:

#1: -1 points ( the picture for the 2nd proof is not correct)

#2: -10 points

#12(a): -2 points (visiting every EDGE exactly once, not every vertex)


 Best wishes,

   Dr. Z.