Question
A box of cookies cost $14 while a box of tarts cost $19. Each box contained either 9 cookies or 5 tarts. Penelope bought the same number of cookies and tarts. She paid $909 more for the tarts. How many boxes of cookies did she buy?
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A box of cookies cost $14 while a box of tarts cost $19. Each box contained either 9 cookies or 5 tarts. Penelope bought the same number of cookies and tarts. She paid $909 more for the tarts. How many boxes of cookies did she buy?