Respuesta :

Answer/Explanation:

1 Billion in scientific notation is [tex]1*10^{9}[/tex]

Multiply the value of 1 billion for 31:

[tex]31*(1*10^{9} )=[/tex]

[tex]31*10^{9}=[/tex]

[tex]3.1*10^{10}[/tex] would be your answer

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