log(1 × 2 × 3) =

1. log 5

2. log 1 × log 2 × log 3

3. log 1 + log 2 + log 3

4. log 9

The value of log 0.0001 to the base 0.1 is:

1. 4

2. 3

3. $\dfrac{1}{4}$

4. $\dfrac{1}{3}$

If log₅ (8x - 3) = 3, then x =

1. 8

2. 16

3. 32

4. 40

log₉ 27 =

1. 3

2. $\dfrac{1}{3}$

3. $\dfrac{2}{3}$

4. $\dfrac{3}{2}$