If a unit price label has a unit price of 13.5 cents per ounce, how much is the total price for a 24 ounce package?

Multiply the unit price by the package size: 13.5 cents per ounce × 24 ounces = 324 cents. Since 100 cents equals $1, 324 cents is $3.24, so the correct choice is $3.24.

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