zoiejo2005
zoiejo2005 zoiejo2005
  • 16-03-2019
  • Mathematics
contestada

please help me !!!!!!!!!!

please help me class=

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Bra1nPowers
Bra1nPowers Bra1nPowers
  • 16-03-2019
It would equal 5 x 10 ^ 10
because 10 ^ 10 is 10 billion and 9 x 10 billion is 90 billion and 4 x 10 billion is 40 billion. so, 90 billion - 40 billion. that's 50 billion, and that can be turned into 5 x 10 ^ 10.
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