Question
The cost of 6 dictionaries and 2 paperbacks is $31.20. The cost of 3 dictionaries and 2 paperbacks is $19.20. What is the cost of 9 dictionaries and 9 paperbacks?
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The cost of 6 dictionaries and 2 paperbacks is $31.20. The cost of 3 dictionaries and 2 paperbacks is $19.20. What is the cost of 9 dictionaries and 9 paperbacks?