emily has saved 75.25 so far for a new phone. the cell phone that she want costs 102.19 How much more money does she need to pur
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The answer is A, 
. This is because when plugging in -2 for x, the expression will look like this: 
. To make the exponent positive, you have to flip it into a fraction. Then it will be 
. Lastly, you simplify the denominator into 81.