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7.81 miles
Setting the store as the origin (0,0), Bob is at (3, 4) and Kim is at (-2, -2)
The distances are 5 and 6, respectively, and the diagonal or straight line distance is
sqrt (x2 + y2) = sqrt (25 + 36) = sqrt (61) or about 7.81 miles

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Q: Bob and Kim are driving their cars toward the same store Bob is 3 miles north and 4 miles east of the store and Kim is 2 miles south and 2 miles west of the store How far apart are they?
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