Answer:
I can't reflect it for you, but I can give you the marked point coordinates ◕ ◡ ◕ 
original: (5, -3)
final: (5, 3)
 
        
             
        
        
        
Answer:
answer is no, not a right triangle
Step-by-step explanation:
if it is a right triangle then the sum of the square of the two smaller legs will equal the square of the longest leg
does 8² + 12² equal 15²?
64 + 144 = 225
208 ≠ 225
answer is no, not a right triangle
 
        
             
        
        
        
So the problem ask on which of the following in your choices is the coordinates of the image produced by applying the composition and rotations and based on that, the answer would be letter A. (-5,4) because the total rotations is 360 so its still the same 
        
                    
             
        
        
        
X=11
The triangle equals to 180
Hope this helps!!
        
             
        
        
        
The first person can be chosen in 4 different ways.
The second person can be chosen in 3 different ways.
The third person can be chosen in 2 ways
The last person can only be chosen in 1 way.
4 * 3 * 2 * 1
there are 24 different ways that this can be done.
There is only 1 correct order.
The answer is 1/24 ways. 1/24 = 0.04166666