Answer:
The second answer is correct (5 x 1,000,000,000)
Step-by-step explanation:
Just count the number of zeros. Multiplying a number liket his by five doesn't change the number of zeros
 
        
                    
             
        
        
        
We know that there are (4^9)^5 ⋅ 4^0 at the library, so we just need to simplify this to get the answer.
(4^9)^5 ⋅ 4^0 
=(4^9)^5×1
=(4^9)^5
=4^9×5
=4^45. As a result, the total number of books at the library is 4^45 books at the library or B is the final answer. Hope it help!
        
             
        
        
        
Answer:
2y=5x
Step-by-step explanation:
-3x+5y=2x+3y
5y=5x+3y
2y=5x
 
        
             
        
        
        
Answer:
I think it's the third one sry if I'm wrong