Answer: option b.
Step-by-step explanation:
To solve the given exercise, you must keep on mind the following law of logaritms:

Descompose 8 into its prime factors:

Therefore, you can rewrite the expression given, as following:

You know that 
Then, when you substitute, you obtain:
≈0.9030
Answer:
Anwer would be B. step 3. Taking b to the left side will make it negative which would result in 4b overall
Answer:
B)
Step-by-step explanation: