Explanation:
7994:Seven thousand nine hundred ninety four .
399,780 :Three hundred thousand ninety nine , seven hundred eighty.
10,051 :Ten thousand fifty one .
35 :thirty five .
35,094,013 :thirty five million ninety four thousand and thirteen.
Answer:
7.994×10^3
3.99780×10^5
1.0051×10^4
3.5×10^1
3.5094013×10^7
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