Pls solve the third and the fourth sum.....

Dear Student.

$$\begin{gathered} 3) x= \log 0.6 \\ y=\log 1.25 \\ z=\log 3 - 2\log 2 \\ z=\log 3 - \log 4 \\ z=\log (\frac{3}{4}) \\ x+y-z=\log 0.6+\log 1.25-\log (\frac{3}{4}\left) \\ \log \right(\frac{0.6\times 1.25\times 4}{3})=\log 1=0 \\ (ii) 5^{x+y-z}=5^0=1 \end{gathered}$$

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