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Part B - Simplify and evaluate. Express your answer to the nearest tenth.
13. (3.15 + 2.7)  (5.2 +1.4)
14. 6.7 X (1.2 + 4.9)  (2.8 + 1.6)
15. (3.5 + 2.1) X (3.5 – 2.1)  3 2

Part C - Consider question #15.
If the brackets were removed, how would the solution be affected?
Show how you know.



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