What is the value of $\log_{10}{4}+2\log_{10}{5}+3\log_{10}{2}+6\log_{10}{5}+\log_{10}{8}$?
Let's simplify the expression using the rules of logarithms. So $\log_{10}{4}+2\log_{10}{5}+3\log_{10}{2}+6\log_{10}{5}+\log_{10}{8}=\log_{10}{4}+\log_{10}{5^2}+\log_{10}{2^3}+\log_{10}{5^6}+\log_{10}{8}$. And this is equal to $\log_{10}(2^8*5^8)=\log_{10}(10^8)=8$.



