The given expression is :
[tex]6.91\times10^{-5}[/tex]in to decimal form :
[tex]\begin{gathered} 6.91\times10^{-5} \\ 6.91\times10^{-5}=\frac{6.91}{10^5} \\ 6.91\times10^{-5}=\frac{6.91}{100000} \\ \text{ Remove the decimal from numerator :} \\ 6.91\times10^{-5}=\frac{691}{100000\times100} \\ \text{Now place the }decimal\text{ 7 places }left\text{ to the numerator :} \\ 6.91\times10^{-5}=0.0000691 \end{gathered}[/tex]Answer : 0.0000691
