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Answer:each book cost 39 dollars

Step-by-step explanation:

Since she had 16 dollars left over afterwords subtract 16 from 289 which leaves you with 273. then take the 273 and divide by the 7 books she bout whic will become 39 dollars therefore each book cost 39 dollars

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Answer:

The answer is $39 per book

Step-by-step explanation:

$273/7= $39/book

39*7=$273

Then you subtract: 289-273=$16