The amount that Mary drives changes from week to week, so the amount that she spends on gas each week also changes. However, she has calculated that, over the last year, she spent a total of $ 1400 on gas.

On average, how much does she spend each week on gas?

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,

Really any number between them works. for example 144.951