For #18 
you would divide 3y over 3 witch would cancel out then you would divide 9.5 over 3 and you would get (3.16) i think 
        
             
        
        
        
A move decimal behind the 7 ten places to the right since its positive
        
             
        
        
        
Answer:
B. CPI
Step-by-step explanation:
 
        
             
        
        
        
Answer:
-4
Step-by-step explanation:
Given function 
f(x) = -2x² + 3x - 4 
Comparing with ax² + bx + c We get 
c = - 4 
Hope it will help :)❤