Answer: A 550g box for $10.89
Explanation:
Represent each option as grams per dollar
225g / $5.77 = 38.99g / $1.00
550g / $10.89 = 50.51g / $1.00
725g / $16.89 = 42.92g / $1.00
The second option gives the most grams per dollar
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