Twelve books cost me $48. What would 13 books cost me?
To do that, use the given ratio as a conversion factor to go from number of books to cost. You will end up with
Notice that you don't have to use the simplified ratio here, you can work directly with the one given to you by the problem
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To find the cost of 13 books, you can use a proportion. Since 12 books cost $48, you can set up the proportion:
12 books / $48 = 13 books / x
Solving for x, where x represents the cost of 13 books:
x = (13 books * $48) / 12 books
x = $52
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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