10. Perform the following calculations, keeping track of significant figures and expressing your answer in scientific notation: A. 567.3 \cdot (43.43 + 63.1) B. 0.00456 \cdot (1.234 - 1.112) C. \frac{9456.3}{12.43 + 34.567} D. 120 + 451 E. \frac{(5.673 - 4.76) + 26.7}{78.43}
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