The Windows key has the Windows logo on it. Right-click the Date/Time display on the taskbar and then choose Adjust Date/Time from the shortcut menu. The Date and Time dialog box appears. Click the Change Date and Time button.
        
                    
             
        
        
        
That would be a star network. A star network isn't necessarily shaped like a star, of course, but like you mention this topology has a central device, usually a server of some sorts, and then many different endpoints coming out of that central device, such as the client computers for the server.
        
             
        
        
        
Answer:
Umm what? Are you talking about the type of problem it is? If so it is an optimization problem. 
Explanation:
I had something like this for one of my tests and I chose the optimization problem because it finds the values of decision variables that result in a maximum or minimum of a function.
But ion know if it's this that you are talking about
 
        
             
        
        
        
Answer:
Great question 
Explanation:
is not realistic because nearly everyone doesn't even consider to look at the ad. Most people actually find it annoying when they are scrolling on their feed and all of a sudden an ad pops up. 
 
        
                    
             
        
        
        
Answer:
Check Yt
Explanation:
More often than not there are many video tutorials about every game imaginable.