Dear Sarah M.,

 Please consult

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

for the full solutions.

You got  118 points (out of 120). GOOD JOB!

Everything was right except:

#7: -2 points (an EF is a sum of DISTINCT unit fractions)




 Best wishes,

   Dr. Z.