The one next to 3 is 12, the one next to 7 is 28, the one next to 12 is 48. All you have to do is multiply the quads by four and you get the number of wheels.
        
             
        
        
        
         x+7
------------------- =       
  x^2+4x -21
         x+7
= -------------------
    (x+7)(x-3)
       1
= ----------  where x is not equal -7 and 3
    x - 3
answer is A. first choice
        
             
        
        
        
Answer:
x + y = 0
Step-by-step explanation:
Slope 1
b = -2 - (-1)(2)
b = -2 +2
b = 0
y = -x
 
        
             
        
        
        
Answer:
True
Step-by-step explanation:
4x<8 
divide
x<2