For one block every minute, it should be 24 minutes and for 2 blocks per minute, it should be 12 minutes.
1. Is 0.67
2. Is 0.0004
3. Is 0.2. DIES BOT BELONG
4. Is 0.521
Answer:36
Step-by-step explanation:
Given the expression 
Take a logarithm
from both side of the given expression:

From the property
you have that

Then

Answer: correct choice is C