Concept explainers
* Sue and Tonya started the same job at the same time and earned identical salaries. After one year, Sue got a 5% raise and Tonya got a 6% raise. The following year, the situation was reversed: Sue got a 6% raise and Tonya got a 5% raise. After the first year, Tonya?s salary was higher than Sue’s, of course, but whose salary was higher after both raises? Explain how the commutative property of multiplication is relevant to comparing the salaries after both raises.
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