Use Scientific Notation to Simplify $\frac{49,000 \times 0.0004}{0.007 \times 7,000,000}$ A) $4 \times 10^{-4} ; 0.0004$

Multiple Choice

Use scientific notation to simplify. Write the answer in both scientific notation and standard notation.
- $\frac{49,000 \times 0.0004}{0.007 \times 7,000,000}$

A) $4 \times 10^{-4} ; 0.0004$
B) $4 \times 10^{-3} ; 0.004$
C) $4 \times 10^{-2} ; 0.04$
D) $0.4 \times 10^{-3} ; 0.004$