Step-by-step explanation:
true because obviously the elevation of the object will be smaller then its original elevation
 
        
             
        
        
        
You know x, so just plug it in for the answers. Like AB = x + 7, so since x is 3, then AB is 3 + 7 = 10 
BD is 2x + 3x -1 = 6 + 9 - 1 = 14
CE is 3x - 1+ 2x + 3 = 9-1+6+3= 17
        
             
        
        
        
Answer:
A and B is correct 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
none of the choices
Step-by-step explanation:
f(x) = 3-x
Let x=-1
f(-1) = 3 - (-1)
      = 3+1
       =4
f(-1) =4