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Concept explainers
* Suppose that the sales tax is 7%, and suppose that some towels are on sale at a 20% discount. When you buy the towels, you pay 7% tax on the discounted price. What if you were to pay 7% tax on the full price, but you got a 20% discount on the price including the tax? Would you pay more, less, or the same amount? Explain how the commutative property of multiplication is relevant to this question.
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Chapter 7 Solutions
Pearson eText for Mathematics for Elementary Teachers with Activities -- Instant Access (Pearson+)
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