**Question 1:**
Find $x$: $2={\mathrm{log}}_{8}x$

**Question 2:**
Find $x$: $x={\mathrm{log}}_{3}243$

**Question 3:**
Solve ${\mathrm{log}}_{2}8+{\mathrm{log}}_{8}2$

**Question 4:**
Express ${\mathrm{log}}_{7}x$ as multiple of ${\mathrm{log}}_{10}x$

**Question 5:**
Express ${\mathrm{log}}_{4}17$ in terms of the logarithms base $10$

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