Answer:
Step-by-step explanation :
a) 75
b) 39
C) 182
 
        
             
        
        
        
Answer:
10
Step-by-step explanation:
To solve this you would do 250 divided by 25 because that solves for the unknown. This gets you 10. So, 250/10 is equal to 25
Hope this helps! 
 
        
             
        
        
        
Line of symmetry is the line which cuts the figure into two same halves
or we can say that which passes through the figure such that it makes one half the mirror image of the other half
So we can see from the figure that y=-2 is the line which cuts the figure in to equal halves
So 
y=-2
Third option
 
        
             
        
        
        
f(x) = 2(x+8)
replace f(x) with 12 and then solve for x:
12 = 2(x +8)
Use the distributive Property on the right side:
 12 = 2x +16
Subtract 16 from each side:
-4 - 2x
Divide both sides by 2:
x = -4 / 2
x = -2