It would be: (2/9)² = 4/81
In short, Your Answer would be Option A
Hope this helps!
        
             
        
        
        
 construction of an angle bisector
 of 60° into 30°and 30°
 
        
             
        
        
        
Answer:
your answer is 10/3 (fraction)
Step-by-step explanation:
120-40=80
4 x 6=24
80/24=
- first divide both sides by four and get 20/6 
- then divide by 2 to get 10/3 (fraction form)
 
        
                    
             
        
        
        
Let x= number rows
Then x + 5 = number of seats per row
x(x+5) = 126
X^2 + 5x = 126
x^2 + 5x -126 = 0; now factor or use quadratic:
(x+14)(x-9) = 0; so the answers are either -14, or 9, and since -14 is not possible in this case because you can't have a negative number of rows, the answer is 9 rows.
Check work: number of rows = 9, number of seats per row = 9+ 5= 14, and 9 x 14 = 126
        
             
        
        
        
Each person would receive 6 chocolate truffles and 4 caramel truffles because 126÷21=6 and 84÷21=4.