In a recent year, a letter to Europe from the United States cost $0.94 to mail. A letter mailed within the United States costs $
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In the given question Laura has $30 to spend on food for the week.
According to the question we have to set the inequality between total amount and amount spent on food.
Amount spend by Laura on food for the week = $30
Let the amount spent by Laura on food be x
So she has to spend up to $30
So inequality will be
So option b is the answer