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  • 09-10-2016
  • Mathematics
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Please help me with number 7.

Please help me with number 7 class=

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Аноним Аноним
  • 09-10-2016
7a expression: 12 + (- 1) + (- 1) + 3
7b evaluate: 13                    Solving:((12 + -1 = 11) + (-1 + 3 = 2) (11 + 2 = 13)) 
7c: At the end of the three days, the value of the stock was $13.
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