Answer:
?
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
3/4 * 2/5
Step-by-step explanation:
Areas is L * W 
(1/5 + 1/5) * (1/4 + 1/4 + 1/4) = 2/5 * 3/4
 
        
                    
             
        
        
        
Answer:
B
Step-by-step explanation:
an additional hour of walking is associated with an additional 0.7 mile walk
 
        
             
        
        
        
Answer:
A (9, 3)
Step-by-step explanation:
First the point is rotated 90° counterclockwise about the origin.  To do that transformation: (x, y) → (-y, x).
So S(-3, -5) becomes S'(5, -3).
Next, the point is translated +4 units in the x direction and +6 units in the y direction.
So S'(5, -3) becomes S"(9, 3).
 
        
             
        
        
        
Answer:
30
Step-by-step explanation:
2/3 = x/18
2*18 = 3x
36 = 3x
x=12
so there are 12 boys 
12+18=30