Answer:
1. 1/6 2. 80
Step-by-step explanation:
 
        
                    
             
        
        
        
B
The purple balls constitute 1/3 of the amount of balls there, so you’re that likely to pluck one out.
        
             
        
        
        
Answer: I think it would be 4a(a−2b squared)
 
        
             
        
        
        
Answer:
one segment could have a length of 15
second segment could have length of 25
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
(y, -x)
Step-by-step explanation:
Rotation of 90°
(Clockwise)
(x, y)  ---> (y, -x)
Rotation of 90°
(CounterClockwise)
(x, y) --> (-y, x) 
Rotation of 180°
(Both Clockwise and Counterclockwise)
(x, y) ---> (-x, -y)
Rotation of 270°
(Clockwise)
(x, y) ---> (-y, x)
Rotation of 270°
(CounterClockwise)
(x, y) ---> (y, -x)