Answer:
14
Step-by-step explanation:
divide 70 into 5 
if you were to draw it out it would be 5 circles and you put one line until you reach 70 in each circle you would get 14
 
        
             
        
        
        
3/10 and 4/10 and 4/12 and 9/12
        
             
        
        
        
Answer:
Step-by-step explanation:
 
        
             
        
        
        
f( x ) = - 1/3 x + 5
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i have no idea about a but 
B. LN corresponds to EF
MN corresponds to DF
E corresponds to L
F corresponds to N