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There are loads of similar questions like this on here. The way to work it out is...

Multiply the area to be covered by 144 (the number of square inches in a square foot) then divide that figure by the size of the tile (in square inches) In this case it's...

(171x144) divided by (13x13)

Go on - there's the sum - you can do it !

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14y ago

What else can I help you with?