Question
The cost of 6 paperbacks and 4 magazines is $34.80. The cost of 3 paperbacks and 4 magazines is $19.80. What is the cost of 7 paperbacks and 7 magazines?
4 m

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The cost of 6 paperbacks and 4 magazines is $34.80. The cost of 3 paperbacks and 4 magazines is $19.80. What is the cost of 7 paperbacks and 7 magazines?