Answer:

Step-by-step explanation:
Given

Required
Evaluate 
We have:

Apply law of logarithm

Express 9 as 3^2

Evaluate the exponents

.
So:


Substitute 


Answer:
B
Step-by-step explanation:
Answer: Independent
Step-by-step explanation: Just multiply the probability of the first event by the second.
Answer:
About 62.1371
Step-by-step explanation: