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Posted by on Wednesday, November 14, 2012 at 10:52pm.

Write an algebraic expression to represent the cost of m gallons of gasoline if each gallon costs $1.45

Is this right M-$1.45

  • Math - , Wednesday, November 14, 2012 at 10:56pm

    No.

    Why would you subtract?

    If one gallon costs 1.45, what does 2 gallons cost? How do you know?

  • math - , Wednesday, November 14, 2012 at 11:27pm

    Two gallons cost $2.90. You have to add

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