Answer: 18
Step-by-step explanation:
 
        
                    
             
        
        
        
Sorry man I don't know if im write but try 28.78
        
                    
             
        
        
        
3 and 1 half is also known as 3.5,
3.5 x 3.5 = 12.25 
in fractions that is 12 and 1 quarter
        
                    
             
        
        
        
Answer: 
Inequality : 4x+8 < 120
x<28
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Perimeter of a rectangle (P)= 2 length +2 width
Where:
Width = x
Length = x+4
Replacing with the values given
P = 2 (x+4) + 2x
P = 2x+8+2x
P=4x+8
Since the perimeter of the rectangle must be less than 120:
4x+8 < 120
Solving for x
4x<120-8
4x<112
x<112/4
x<28
Feel free to ask for more if needed or if you did not understand something.  
 
        
             
        
        
        
There are no real solutions to solve Z. If there may be a typo or something, there are no solutions.