Question
Sam went to a mall with 3 twenty-dollar notes. He bought a bag and a pencil case. A bag cost 2 times as much as a pencil case. He received $35.70 change. How much did the pencil case cost?
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Sam went to a mall with 3 twenty-dollar notes. He bought a bag and a pencil case. A bag cost 2 times as much as a pencil case. He received $35.70 change. How much did the pencil case cost?