Answer:
I'm just guessing so don't judge. 3
Step-by-step explanation:
 
        
             
        
        
        
The Bureau of Engraving and Printing (BEP)  is a government agency within the United States Department of the Treasury that designs and produces a variety of security products for the United States government, most notable of which is Federal Reserve Notes (paper money) for the Federal Reserve, the nations central bank...
        
             
        
        
        
.16i belive is your answer
        
             
        
        
        
they are 2 similar triangles, one is smaller than the other. they are in the ratio of 2:1,
hence 7x =56÷2
7x=28
x=4