Answer: just add 75 and 45 + x and do division for 69 ok  but times the 45 with 69 ok good luck
Step-by-step explanation:
 
        
             
        
        
        
It is called a consistent dependent system
        
             
        
        
        
I would say 110 becuz if u add all of those together u would get 100 then u find a number that will get you to 210 which would be 110 then u get 210 ..hope this helps sorry if not
        
             
        
        
        
Answer: D
Step-by-step explanation: I said D because it's bigger than every other thing
 
        
                    
             
        
        
        
-0.4x=2.5 divide both sides by -0.4
x=-6.25