Find mph
120/3 = 40 mph
200/40 = 5 hours to travel 200 miles
        
                    
             
        
        
        
The 18th month he will have to change both, 
     I hope this helped!
        
                    
             
        
        
        
Answer:
109 - -37 = 146
Step-by-step explanation:
since you are subtracting a negative, the negative number and the sign cancel each other out. So all you have to do is add.
 
        
             
        
        
        
The mathematical expression of the given complex number above is -5 + 4i. The conjugate of this complex number is that which has an opposite operation. The given is an addition operation. That is -5 - 4i. Therefore, the answer is the third among the choices. 
        
             
        
        
        
(x + 3)^3 = (x + 3)(x + 3)(x + 3) = (x + 3)(x^2 + 6x + 9) = x^3 + 9x^2 + 27x + 27