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2. The average distance between planet Neptune

and the Sun is about 4 × 109 kilometers. What
is 4 × 109 written in standard notation?
A. 0.0000000004
B. 0.000000004
C. 400,000,000
D. 4,000,000,000

User Merigrim
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1 Answer

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the answer to this question is C
User Royal Rose
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