Two cars got an oil change at the same auto shop. The shop charges customers for each quart of oil plus a flat fee for labor. The oil change for one car required 5 quarts of oil and cost $23.40. The oil change for the other car required 7 quarts of oil and cost $26.90. How much is the labor fee and how much is each quart of oil
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Two cars got an oil change at the same auto shop. The shop charges customers for each quart of oil p...
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