1. What is the decimal form of the expanded expression \( 3 \times 10 + 5 + 4 \times \frac{1}{10} + 7 \times \frac{1}{1000} \)?
A) \( 35.47 \)
B) \( 35.047 \)
C) \( 35.407 \)
D) \( 35.0047 \)
Correct Answer:
Detailed mathematical steps and logical reasoning.


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