Last week Fred had 86 dollars and Jason had 5 dollars. Fred washed cars over the weekend and now has 9 dollars and Jason did not work. How much money do they have together now?
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Fred had 86 dollars and Jason had 5 dollars. 

That means that, together, they had 91 dollars. 

Over the weekend, Fred washed cars and made 9 dollars. 

That means that now he has 9 dollars, and Jason still has 5 dollars. 

That means that, together, they have 14 dollars.