Step-by-step explanation:

For this parallelogram to exist least value of x should be 4.
Because if x = 3
(x - 3)= 3 - 3 =0
Thus width of parallelogram would become zero as a result area of parallelogram would become zero i. e. Parallelogram won't exist.
 
        
             
        
        
        
Answer:
1st one and the third one
Step-by-step explanation:
25(0)=25
25+0=25
 
        
                    
             
        
        
        
15+26s-6=25s-9
26s+9=25s-9
s+9=-9
s=-18
        
                    
             
        
        
        
I think it’s 10 cm
Don’t know if I’m right tho