I believe the answer is B
        
                    
             
        
        
        
paso a paso
Step-by-step explanation:
tienes que saber cuanto le quito al otro por que 
el primero es 168 y el otro es 138 cubro le quito 30 y el otro 
es 123 igual tienes que quitarle tal ves es sumarle primero y después 2 de restarle 
espero que te sirva
 
        
             
        
        
        
The constant of proportionality is 5/9
y= kx  where k is the constant of proportionality
y = 5/9 x
k = 5/9
 
        
             
        
        
        
Answer: Follow the Steps Below. 
Step-by-step explanation: Simply divide the area of the rectangle by its height to find its base. Other forms of solving for the base can be accomplished knowing diagonal length by simply taking the square root of the diagonal length squared minus its height squared.
 
        
             
        
        
        
Answer:
C
Step-by-step explanation:
Don't worry about the volume to start with. Just look at the area of the top or bottom.
The hole has a 4 inch diameter
d = 4
r = d/2
r = 2
Area = pi r^2
Area = pi * 2^2
Area = 4 pi
Now find the area of the top (or bottom) if the circle was not there. 
L = 8
W = 6
Area = L * W
Area = 8 * 6
Area = 48
Now take away the area of the circle.
Area Top = 48 - 4 * pi
Area Top = 48 - 12.56
Area Top = 35.44
Finally, Find the volume
Volume = area of the top * height
Volume = 35.44 * 15
Volume = 531.6