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Dave's gas powered snowblower requires 3.5 inches of oil to 've mixed with every gallon of gasoline for fuel. if is to add 4.2 gallons of gasoline, how much oil does he need to get the required mixture?

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(3.5 inches of oil) / (1 gallon of gasoline) * (4.2 gallons of gasoline)=
14.7 inches of oil

Answer: He needs 14.7 inches of oil to get the required mixture
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