Answer:
Step-by-step explanation:
Surface area of a triangular prism
Height = 8cm
12cm
10cm
This given as: 
S.A = B + Ph
 
        
             
        
        
        
Regroup 
2(x-7)=36 
Divide both sides by two 
X-7= 36/2
Simplify 36/2 to 18 
X-7=18
Add 7 to both sides 
X=18+7
Simplify 18+7 to 25 
X = 25
        
                    
             
        
        
        
Answer:
- 8 points left and 7 points down
Step-by-step explanation:
Get the difference of one point on M and corresponding point on L, and  find the difference of coordinates.
<u>Lets take top right points:</u>
<u>The difference:</u>
- -1 - 7 = -8 ⇒ 8 points left
- 2 - 9 = -7 ⇒ 7 points down