Answer:
Step 3 
Step-by-step explanation:
This is the right one because you are adding two thing in step two which lead to step 3
 
        
             
        
        
        
Answer:
Step-by-step explanation:
Forecast for period 1 is 5
Demand For Period 1 is 7
Demand for Period  2 is 9  
Forecast  can be given by

where 



 
  


Forecast for Period 3


 
  
 
        
             
        
        
        
<span>In order to use the surface integral in Stokes' theorem to calculate the flux of the curl of the field, we need the field</span>