3 if $log_{8}x$ $=\frac{2}{3}$, then the value of $x$ is : A) $\frac{3}{2}$ B) $\frac{2}{3}$ C) 2 D) 4
6 The value of $\left(\frac{1}{3}log_{10}125-2log_{10}4+log_{10}32\right)$ is : A) 1 B) 4 C) $\frac{4}{5}$ D) 2
7 If log 2 $=x$, log 3 $=y$ and log 7 $=z$, then the value of log $(4.\sqrt[3]{69})$ is : A) $2x+\frac{2}{3}y$ $-\frac{1}{3}z$ B) $2x+\frac{2}{3}y$ $+\frac{1}{3}z$ C) $2x-\frac{2}{3}y$ $+\frac{1}{3}z$ D) $-2x+\frac{2}{3}y$ $+\frac{1}{3}z$
9 If $log(0.57)$ $=\overline{1}$$.756$, then the value of log 57 + log $(0.57)^{3}$ + log $\sqrt{0.57}$ is : A) $\overline{2}$$.146$ B) 0.902 C) $\overline{1}$$.146$ D) 1.902
11 $\frac{log\sqrt{8}}{log8}$ is equal to : A) $\frac{1}{8}$ B) $\frac{1}{2}$ C) $\frac{1}{\sqrt{8}}$ D) $\frac{1}{4}$
12 $log\left(\frac{a^{2}}{bc}\right)$ $+log\left(\frac{b^{2}}{ac}\right)$ $+log\left(\frac{c^{2}}{ab}\right)$ is equal to A) 0 B) 2 C) 4 D) 1