hannah2001111 hannah2001111
  • 25-01-2017
  • Mathematics
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i need help with this math problem

i need help with this math problem class=

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kalanisc
kalanisc kalanisc
  • 25-01-2017
21-9=12
2^3=8
12/8=1 1/2 or 1.5
7(1.5)=10 1/2 or 10.5 or 21/2
the correct answer is 21/2
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