Answer:
24
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
4y
Step-by-step explanation:
y + y + y + y = 4y
 
        
                    
             
        
        
        
Answer:
B) 42
Step-by-step explanation:
Area  =  b h
 b h
Area  =   x 12 x7
 x 12 x7
Area = 42
 
        
             
        
        
        
C: 60 children because 60 cannont go into 9 which is the amount of children in the first ratio
        
             
        
        
        
Alberto and 9 of his friends went out to eat.
1 + 9 = 10
So there are 10 people in total.
Each person paid the same amount, $18.
18 × 10 = 180
The total bill was $180.