40 sets of tires. I learned this by looking up your question because it is incomplete.
        
             
        
        
        
2 would most like be doubled and be 4 I think...
        
             
        
        
        
Answer:
0
Step-by-step explanation:
When dealing with an equation that only involves addition and subtraction ...you can solve it juat as it is witout using any special method same applied to equations tht involve only multiplication and division ... because they are an (inverse) of each other... hope it helps
 
        
                    
             
        
        
        
Answer:
1 1\15
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
it's option A .............