How do you write nine billion in standard form?

Answer 1

9,000,000,000,000,000,000.<---Nine billion.

Its 9+1000,000,000,+1000,000,000.! <---Hope my ansewer help..

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edit: the first line is totally wrong, a billion has 9 zeroes, that number is 9 billion billion,

the second line really does not mean anything at all, seriously its gibberish, in standard form the answer is 9x10^9

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Nor is the above (which is scientific notation). The correct answer, for standard form is 9,000,000,000.