Answer
A 9.3 $\times 10^{-4}$
B $2.2 \times 10^{-1}$
C $5.4 \times 10^{-1}$
D $3.1 \times 10^{1}$
Work Step by Step
A The appropriate number of significant figures is two, since the number 0.0023 has the least number of significant figures (two).
B The appropriate number of significant figures is two, since the number 0.096 has the least number of significant figures (two).
C The appropriate number of significant figures is two, since the number 0.12 has the least number of significant figures (two).
D The appropriate number of significant figures is two, since the number 0.055 has the least number of significant figures (two).
