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You just priced what it would cost to buy vinyl floor tiles at the local tile store. They quoted you $3.29 per tile. When you went home, you found the same tile for sale at an online outlet for $2.89 per tile. As a percentage, how much more expensive is the tile store's quote?

A The tile store's price costs about 14% more than the online outlet store.
Explaination
The question can be translated into the following algebraic expression: 2.89 + 2.89x = 3.29. That is, how much percent greater is 3.29 than 2.89. Subtract 2.89 from both sides and then divide by 2.89 to find the percentage: 2.89x = 0.4, and $1188_w135_h37.png$, which translates to about 14%.
B The tile store's price costs about 16% more than the online outlet store.
C The tile store's price costs about 10% more than the online outlet store.
D The tile store's price costs about 11% more than the online outlet store.