Subtract 2.1 from both sides:

Add 1.4y to both sides:

Of course, we can rewrite this as

Divide both sides by 1.4

 
        
             
        
        
        
Answer:
 3 kids and 5 adults 
Step-by-step explanation:
3×5.5 = 16.5
5×7.25= 36.25
16.5+36.25= 52.75
 
        
             
        
        
        
Answer:
breads
Step-by-step explanation:
idk