Answer:
i believe its 7 + x < 20
Step-by-step explanation:
 
        
             
        
        
        
Answer:
<h2>No,they are not</h2>
Step-by-step explanation:
An algebraic expression must contain and unknown value to solve for.
 
        
                    
             
        
        
        
6 7/8= 55/8
6 1/6= 7/6
first find common denominators
55/8 * 3= 165/24
7/6 * 4= 28/24
165/24 divided by 28/24 is the same as 165/24 time 24/28
so that equals 3960/672
which equals 5.8928
so estimates about 5 shelves<span />