For his long distance phone service, Goran pays a $6 monthly fee plus 8 cents per minute. Last month, Goran's long distance bill was 20.64$. For how many minutes was Goran billed?

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Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,