# Annie want to buy a toy, but she has no money? If she saves for 3 weeks she will be $1 short of what it cost to buy the toy, if she saves for 4 weeks she will be $3 above the toy cost. How much is Annie saving every week? what is the cost of the toy?

She gets $4 a week, the toy costs $13.

Therefore

Her weekly allowance is, therefore, $4.

The toy, therefore, costs $13

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Annie is saving $6 every week, and the cost of the toy is$17.

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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.

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