Question 372641
{{{(0.4x10^(-6))*(0.7x10^(-2))=0.28x10^(-6-2)}}}
{{{(0.4x10^(-6))*(0.7x10^(-2))=0.28x10^(-8)}}}
{{{(0.4x10^(-6))*(0.7x10^(-2))=highlight(2.8*10^(-9))}}}