Answer:0n=0
Step-by-step explanation:
-2n+9+2n=9
 -9 -9
———————
-2n+2n=0
-2n -2
———————
0n=0
 
        
                    
             
        
        
        
Answer:
$16.50
Step-by-step explanation:
15/100*110
15/10*11
3/2*11
33/3
16.50 
 
        
             
        
        
        
Answer:
He needs to paint 3 4/5 today.
Step-by-step explanation:
9 - 5 1/5 = 3 4/5
Otto will need to paint 3 4/5 today.
 
        
                    
             
        
        
        
So its 12 divided by 1/5 so 
12 x 1= 12
1 x 5= 5
That is 12 over 5 and u will divide the numerator by the denominator to get 2.4 
Dont know if thts exactly right bcuz its been a while since i learned this but i hope it helps