I am not positive, but I believe 23. sorry in advance if I’m wrong.
        
             
        
        
        
Answer:
(r^9-s^10) (r^18+r^9 s^10 + s^20)
Step-by-step explanation:
hope this helps :)
 
        
             
        
        
        
Answer:
1/4
Step-by-step explanation:
 
        
                    
             
        
        
        
The complete question in the attached figure
the answer is the option <span>c.) RR' || SS' 
</span>Because  the line that passes through the points RR' is perpendicular to the line WY and the line that passes through the points SS' is also perpendicular to the line WY
therefore 
RR' || SS'
 
        
        
        
Since y = 5 and x = -2
5 + 3(-2)
5 + (-6) = -1
-1 = 6
-1 does not equal 6 so its a no.
Hope this helps :)