Dear Robert,


 Please consult

https://sites.math.rutgers.edu/~zeilberg/Hist21/mt1S.pdf

for the full solutions.

You got   98 points (out of 120).

Here is what you got wrong:

#2: -10 points (it has nothing to do with even and odd)

#4(i): -2 points (you had to give more details)

#5: -5 points (you did not explain, and the square you got is not what you get from using the method)

#7: -5 points (you did not define Egyptian fraction)






 Best wishes,

   Dr. Z.