3 + 5(9+2n)
Distribute the 5 to the items in the parentheses 
3 + 5(9+2n)
3 + 45 + 10n
Combine like terms
48 + 10n
        
             
        
        
        
I really don’t know but try it and see
        
             
        
        
        
50 is the value cause 20 is 40 of the percent, 20+20 is 40 now you made it into 80%.20% is remaining so add 10.
        
             
        
        
        
Answer:
44,733
Step-by-step explanation:
48,100 - 7%= 44,733
 
        
                    
             
        
        
        
Answer:
40
Step-by-step explanation:
30/12=2.5
20/2.5=8
8+8+12+12=40