Answer:
The bottom one: The value is the difference of 42 and the sum of 20 and 3.
Step-by-step explanation:
The answer is what you get when you subtract 23 from 42. Using "the difference" means subtraction is involved and you expression is 42 - (minus) (20+3).
 
        
                    
             
        
        
        
Answer:
The answer is 7.
Step-by-step explanation:
You have to substitute the value of x into the function :





 
        
             
        
        
        
Answer:
3rd option
Step-by-step explanation:
Since 8 minutes is included, do the closed circle. He put it in there for 8 minutes, than put it in there for longer which makes the graph go to the right with including the closed circle. Hope this helped!
 
        
             
        
        
        
Answer:
3
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Step-by-step explanation:
The answer is 7,000,000