7TH GRADE STUFF SHOULD BE EASY TO YOU BUT NOT ME CAUSE IM A LITTLE DUMB

Answer:
a. The most common shoe size for men around the world is typically between 9 and 12.
b. 6 and a half, 3 And a half, 4, 5, 4 and a half
c. Im a little confused on this one myself, sorry!
Step-by-step explanation:
I hoped this helped a bit!