To find out how many fluid ounces of juice Ian bought, we first need to convert gallons into fluid ounces.
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Convert gallons to quarts: \[ 1 \text{ gallon} = 4 \text{ quarts} \] Therefore, \[ 2 \text{ gallons} = 2 \times 4 = 8 \text{ quarts} \]
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Convert quarts to pints: \[ 1 \text{ quart} = 2 \text{ pints} \] Therefore, \[ 8 \text{ quarts} = 8 \times 2 = 16 \text{ pints} \]
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Convert pints to cups: \[ 1 \text{ pint} = 2 \text{ cups} \] Therefore, \[ 16 \text{ pints} = 16 \times 2 = 32 \text{ cups} \]
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Convert cups to fluid ounces: \[ 1 \text{ cup} = 8 \text{ fluid ounces} \] Therefore, \[ 32 \text{ cups} = 32 \times 8 = 256 \text{ fluid ounces} \]
So, Ian bought 256 fluid ounces of juice.