Answer:
C; A singleton set 
Step-by-step explanation:
Mathematically, when a number is non-negative; it is either positive or zero
Now, this is because 0 identifies as neither a positive or a negative number 
hence, when we find the difference between the two sets, the only number that stands out unmatched is the value 0
What this mean is that we are having a set with a single number result 
So we have our answer as {0} 
Which is a singleton set 
 
        
             
        
        
        
Answer: The solution to this is <u><em>y=10x-4</em></u>
Step-by-step explanation:
Also please check out our yoo toobe channel that we have been working hard on, it is called Evimero Academy
thank you