Answer:
Option B - 
Step-by-step explanation:
Given : Expression 
To find : Expand each expression ?
Solution :
Using logarithmic properties,

and 
Here, A=4y^5 and B=x^2



Using logarithmic property, 

Therefore, option B is correct.
Answer:
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Step-by-step explanation:
48/4= 12 pens per box
12*9 = 108 pens in 9 boxes