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An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?
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What is the perimeter of an isosceles triangle with each leg measuring 2x+3 and the base measuring 6x-2?
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What are the number of combinations for 8C5...
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