It's for sure reflection symmetry, I think it's also point reflection (the point must be in the very middle of the figure). I hope it will help you somehow :)
        
                    
             
        
        
        
1. Answer:
C. 1050
Step-by-step explanation:
To find the area of a rectangle, it is length * width * height
25 * 7 = 175
175 * 6 = 1050
2. Answer:
C. 8
Step-by-step explanation:
To find the missing dimension of a rectangle, you can easily just divide the total by each dimension
540 divided by 7.5 = 72
72 divided by 9 = 8
3. Answer:
D. 31,400
(31,415.9)
Step-by-step explanation:
The radius of the cylinder is 20
The height of the cylinder 25
πr2h is the formula used to find the volume of a cylinder
 
        
             
        
        
        
Subtract 2 
y-2=1/2 x
Multiply by 2 to cancel out the denominator and to get 1 in front of x
2(y-2)=x
You can stop there or you can multiply out. 
2y-4=x
 
        
                    
             
        
        
        
Prob of tails times prob of rolling more than 3
0.5 × 0.5 = 0.25
25%
        
                    
             
        
        
        
Answer:
The answer is C. or 15 cm
Step-by-step explanation:
50 cm x 15 cm= 750 cm
Multiply 50 centimeters by 15 centimeters to get 750 centimeters