If $\text{log}_{\sqrt{3}} \space x = 4$, the value of x is :

1. 12

2. 6

3. 9

4. 24

If log_x 64 = 1.5, the value of x is :

1. 48

2. 32

3. 64

4. 16

If log₁₀ x = a, the value of 10^{a - 1} in terms of x is :

1. 10x

2. $\dfrac{x}{10}$

3. $\dfrac{10}{x}$

4. $\dfrac{1}{10x}$

Express each of the following in logarithmic form :

(i) 5³ = 125

(ii) 3^-2 = $\dfrac{1}{9}$

(iii) 10^-3 = 0.001

(iv) $(81)^{\dfrac{3}{4}} = 27$