Final answer:
The domain for Andrea's revenue function is {8, 9, 10, 11, 12}.
Step-by-step explanation:
The domain represents the set of possible inputs or values for a variable in a function. In this case, the domain for Andrea's revenue function would be the set of whole numbers between 8 and 12, inclusive, since she plans on selling at least 8 candles but no more than 12 candles. So the domain would be {8, 9, 10, 11, 12}.
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