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OpenStudy (anonymous):
Think about a kayaking race, a round trip airplane flight, a shopper on an escalator, or a swimming competition. Choose an activity where a rational expression can represent the total or difference of time. For example, what is the time to go round trip on a hot air balloon ride? Use full sentences to describe the real world situation. Write the addition or subtraction rational expression to represent your situation. Simplify the expression, showing all the work or explaining the steps using complete sentences.
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