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The sum of the product of 4 and x and the product of 7 and y is 61. the sum of the product of 12 and x and the product of 21 and y is 61. what are the values of x and y?
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What is the fewest number of full weeks briyana would have to work to have enough money? 8 weeks9 weeks 10 weeks11 weeks
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How many liters of a 65% alcohol solution must be added to 30 l of a 25% alcohol solution to produce...
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