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Answers to practice question 7

1. Answer

   1. 7, 7.01, 7.1, 7.11
   2. 4.55, 5.45, 5.54
   3. 0.005, 0.05, 0.5, 5
   4. 0.01, 0.12, 0.2, 0.21
   5. 1.432, 2.341, 3.124, 4.123
   6. 6.045, 6.05, 6.053, 6.07, 6.27, 6.3

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