Answer:
Option: C, D and F are the correct options.
C. 

D. 

F. 

Explanation:
We are asked to find the expression which is equivalent to:
 

C)
 

We know that:

Since, 36/4=9
Hence, option: C is correct.
D)

Since,

Hence,

Hence, option: D is correct.
F)
 

We know that:

Since, we know that:

Hence, we have:

Since, 36/4=9
Hence, option: F is the correct answer.