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  • 17-03-2017
  • Mathematics
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I need help with 21 a and b and i need to show my work

I need help with 21 a and b and i need to show my work class=

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rodriquezmarie
rodriquezmarie rodriquezmarie
  • 17-03-2017
A) 93.87 seconds
B)97.28 second so a 3.41 difference 
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