Labor-saving devices are inventions that reduce the time and effort needed to perform or complete a task. Farm equipment, home appliances and construction equipment are examples of mechanical inventions that save time and physical labor.
 
        
             
        
        
        
Answer: "It's a dog" and "Who's that?"
Explanation:
The comma is putting together and shortening 'it is' and 'who is'.
 
        
                    
             
        
        
        
Answer: I'm not going to write your whole essay for you, but some good reasons to use would be: A change in atmosphere, they can experience what life is like on a different planet, they can get a chance to learn more about mars or anything else about space, and they can compare and contrast how different mars is from earth along with make new memories on a different planet. 
 
        
             
        
        
        
<h3><u>Select all that apply</u>.  </h3><h3>Bias by arrangement might be accomplished by _____.</h3>
Answers: 1) placing a story on the front page of a newspaper even if other stories are of greater importance.
2) giving a great deal of airtime to a particular story, thus leading a listener to believe it is more important than other stories.
 
 
        
                    
             
        
        
        
You need to show the option or the passage cuz i really cant just answer off that.
Explanation: