2y=1/2x+10
divide by two
y=1/4x+5
        
             
        
        
        
Answer:
-9 
Step-by-step explanation:
You take them both and multiply then divide then subtract
 
        
             
        
        
        
Answer:
A
Step-by-step explanation:
(x-4)^2 = x^2 -4x -4x + (-4)*(-4)
= x^2-8x+16 as required
 
        
             
        
        
        
Given:
The equation is

To find:
The value of b.
Solution:
We have,

Subtracting both sides by  , we get
, we get




Therefore, the value of b is  .
.