Evaluate \(\frac{(0.14^2 \times 0.275)}{7(0.02)}\) to 3 decimal places.

Evaluate \(\frac{(05652)^2 - (04375)^2}{0.04}\) correct to three significant figures

Evaluate \(\frac{\left(\frac{3}{8}\div\frac{1}{2}+\frac{1}{2}\right)}{\left(\frac{1}{8}\times\frac{2}{3}+\frac{1}{3}\right)}\)

Express 123456 to 3 significant figures

calculate the simple interest on N7,500 for 8 years at 5% per annum.