Answer:
2 l think
Step-by-step explanation:
 
        
                    
             
        
        
        
Because It Can Be Simplified Many Ways
        
                    
             
        
        
        
128/7 is roughly 18.3 so you would need 19 vans. 18 of them would fit all 7 so you’d have 126 so the last van would fit 2 students meaning it won’t be full
        
             
        
        
        
60$. These are my equations : 
600 * 0.2 = 120 ; 600 - 120 = 480
Then...
600 * 0.1 = 60 ; 600 - 60 = 540
Which then became....
540 - 480 = 60
        
             
        
        
        
Answer:
Its 40 degrees
Step-by-step explanation:
60+80=140
180-140=40   (a straight line is always 180 degrees)
Hope it helped