Answer:
Conversion rates US Dollar / Mexican Peso
10 USD 209.37500 MXN
20 USD 418.75000 MXN
50 USD 1046.87500 MXN
100 USD 2093.75000 MXN
18 because they need to be identical and you only have 18 chocolate bars
I think you would most likely add all of them well I think
160/4=40 so each side is 40. Divide the perimeter by how many sides you have.
Well i havent read the story but from context clues id say its B