Question
Mary bought 11 puffs and 20 cookies altogether. One puff is y¢ and one cookie is $2. She gave the cashier $50. Express her change in terms of y in cents.
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Mary bought 11 puffs and 20 cookies altogether. One puff is y¢ and one cookie is $2. She gave the cashier $50. Express her change in terms of y in cents.