Susan and John are buying cold drinks for a neighborhood picnic. Each person is
expected to drink one can of soda. Susan says that if you multiply the unit
price for a can of soda by the number of people attending the picnic, you will
be able to determine the total cost of the soda. John says that if you divide
the cost of a 12-pack of soda by the number of sodas, you will determine the
total cost of the sodas.
Who is right and why?