Answer:
7x+54
Step-by-step explanation:
because you distribute the 7 to the x and the 8 first then you bring that down which becomes 7x+56 then you to the addition so you do 56+-2 which would give you 54. 
 
        
             
        
        
        
Answer:
there is the thing you need to answer the question right
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The acceleration is 

Step-by-step explanation:
Use the equation of motion,

where u=0m/s is the initial speed, v=9m/s is the final speed and t=2 seconds is the time.
We substitute the values into the equation and solve for the acceleration, a 

This means that;

Divide both sides by 2 to get:


 
        
             
        
        
        
Answer:
x-1
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
87.97 or 88
Step-by-step explanation: