Answer:1/16
Step-by-step explanation:1/4= .25 
Divide .25 by 4( for the four students) = .0625 
.0625 is equivalent to 1/16
 
        
             
        
        
        
Answer:
3^12
Step-by-step explanation:
Simplify the expression, 3^10/3^-2.
Next, solve for the sum. which will be 3^12.
Full answer is 531441
 
        
                    
             
        
        
        
35 were not guppies. 
Explanation: 
63/9=7
7*4=28
63-28=35
        
             
        
        
        
Answer:P=2x + 2y + 8
Step-by-step explanation: Perimeter (p) =2L+ 2w
P= 2(x+5)+2(y-1)
Remove bracket 
P=2x+ 10 +2y - 2
P=2x+2y+8