Question

please answer and give explanation ​

Answer 1

Step-by-step explanation:

$\sqrt{0.0144} = \sqrt{0.12 \times 0.12} = 0.12 \\ \\ \frac{0.0108}{0.12} \times 100 \\ = \frac{1.08}{0.12} = 108 \div 12 \\ = 9\%$