The answer is -27/8= -3.375
        
                    
             
        
        
        
Just find a common denominator and find the smallest number that goes into it, which in this case it is 29, so 
1/29+6/29+12/29=19/29
        
             
        
        
        
Answer: 63
Hopefully the work makes sense but basically you will add equation DE and EF to get 6x+11 then use that equation with DF and solve for x which will get 26/3 then plug it into DF to get 63
        
             
        
        
        
The answer is B
Hope it helps!
        
                    
             
        
        
        
Answer:
The answer is A. 1/5 of an hour per truck.
Step-by-step explanation:
25/5=5 so that means 5 trucks per hour, or 1/5 of an hour per truck.
Hope this helps!! :)