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Exercises

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Exercise 9

To drive from her house to her office, Fran drove north at 60 mph for 10 minutes, then turned and drove east at 48 mph. She didn't want to drive in a straight line to her destination, because, um, that's not how roads work. Her office is 26 miles from her house as the crow flies. Once again, that crow is flying in a straight line. How long did it take Fran to drive from her house to her office?

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