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Mathematics, 23.07.2019 14:40 christian5668
The hardcover version of a book weighs 7 ounces while its paperback version weighs 5 ounces. forty-five copies of the book weigh a total of 249 ounces.
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The hardcover version of a book weighs 7 ounces while its paperback version weighs 5 ounces. forty-f...
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