Determine by what factor the numbers differ. In other words, determine how many times larger the first number is than the second.400 million, 8 trillion
A. 5 × 10-4
B. 0.5 × 102/3
C. 5 × 10-7
D. 5 × 10-5
Answer: D
Mathematics
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A 
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?
A. 
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