Janina spends $30 each day for rent and uses $12 worth of supplies daily to run her pancake stand. If she sells each pancake for $2, how many pancakes must Janina sell each day to cover her expenses? Let's think first. Chain of thought:
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Janina spends $30 + $12 = $42 each day for her pancake stand. She must sell $42 / $2 = 21 pancakes each day to cover her expenses.
Therefore, the answer is 21.
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