The closest approximation of D(69.28 × 0.004)/0.03 is Choose one:
A) 0.092
B) 0.92
C) 9.2
D) 92
E) 920
D(69.28 × 0.004)/0.03   1. 0.004 = 4 × 10^(-3)   2. 0.03 = 3 × 10^(-2)   3. (a × b)/c = a × (b/c)   4. 0.004/0.03 = 4 × 10^(-3)/ (3 × 10^(-2)) = 4 × 10^( -3 - (-2))/3 = 4 × 10^(-1) / 3 = (4/3) × 10^(-1) = 1.333 × 10^(-1)   Therefore,   (69.28 × 0.004)/0.03 = 69.28 × (0.004/0.03) = 69.28 × 1.33 × 10^(-1) = 69.28 × 1.33/10 = 6.928*1.33   Now,   7 × 2 = 14   7 × 1 = 7   or better:   6.9 × 1 = 6.9   6.9 × 2 = 13.8   hence,   6.9 &lt;6.928 × 1.33 &lt; 13.8   9.2 is the only answer that satisfies this condition.9.2
<result>C</result>
The closest approximation of D(69.28 × 0.004)/0.03 is