Answer:
The elements of S-block elements are 14, so therefore to create an inequality model we declare S  to be the unknown variable.
therefore since we have 14 elements we use an inclusive class interval from 1-14. the model is given as 
1≤S≥14
Step-by-step explanation:
 you have to declare variables before for the unknowns.
you also declare the class interval to be inclusive class interval or exclusive class interval.
 
        
             
        
        
        
Answer:
so its 50+.25(x) = y or 140. x is amount of minutes y is total
 
        
             
        
        
        
Answer: theres a website called weegy did you try that?
 
        
             
        
        
        
Answer:
(4,1)
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
2:1 =36mm: x m
2/1 = 36mm/ m......(Criss cross)
36mm x 1M/2mm = 18 Meter