Answer:28
Step-by-step explanation:
Mowing 50 
Car washing 34 
Total amount 84
 Now divide by 3 accounts 84/3=28
 
        
             
        
        
        
<span>x+y=30.....(1) and x-y=2......(2) so(1)+(2)......x+y+x-y=30+2 so 2x=32...x=16 now apply x=16 in (1) so we get......16+y=30 so .......y=14</span>
        
                    
             
        
        
        
Answer:
480 miles
Step-by-step explanation:
120/1.5=80
80*6=480