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Makayla has a smart phone data plan that costs $45 per month that includes 2 GB of data, but will charge an extra $20 per GB over the included amount. How much would Makayla have to pay in a month where she used 3 GB over the limit? How much would Makayla have to pay in a month where she used went over by xx GB?

Respuesta :

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$45 + x($20)

That is the equation.
X= how many GB she went over