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1 vote
Scientists have calculated that the Earth is 454 000 000 000 years old. How many billion years is this?

2 Answers

4 votes
Divide the answer by a billion one with 9 zeros
So Answer is 454.
User Yehonatan Yehezkel
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8.1k points
7 votes
454 billion years

1 bill = 1000000000
User Noctufaber
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