9x + 5 = 68
9x = 63
x = 7
Cole put seven books on each shelf.
        
                    
             
        
        
        
Answer:
1
Step-by-step explanation:
(1+sinx)/cosx
(1+sin0)/cos0
(1+0)/1
1/1
1
:. Lim x->0 =1
 
        
             
        
        
        
Answer:
x = 19/3
Step-by-step explanation:
30 - 11 = 3x
3x = 19
x = 19/3
hope it helps!
 
        
                    
             
        
        
        
Answer:
I think #5 is c.
Step-by-step explanation:
 because it says 50% without decimal and it's doesn't equal to 1/2%
 
        
                    
             
        
        
        
1: x² + 10x + 25
2: x² - x -12
3: -2x² + 10x
4: -2x² + 9x + 5
5: n² - 4
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1: x² + 14x + 49
2: x² - 14x + 49
3: 4n² - 20n + 25
4: 4n² + 20n +25
5: you just have to switch the signs