I'm Not Completely sure but the closest Answer seems to be C.
        
                    
             
        
        
        
Answer:
x+y=0 and 3x-2y=10
Step-by-step explanation 
Let the numbers be x and y. 
The sum of the two numbers is 0

Letting the smaller number be y and the
larger number be x:
twice the smaller number

Also, 3 times the larger number 

Now ,twice the smaller number subtracted from 3 times the larger number is 10.

Therefore the equations are

and

 
        
             
        
        
        
Answer:
Well..
Step-by-step explanation:
Do 23,882 by 11, then do the answer of that problem divided by 11 and so on
 
        
             
        
        
        
Answer:
Find the median of this data
21+23+60+60+50+54+54+59+26+15+43+15=480/ 12 = 40
Now the median should be 50 so take 50 - 40 = 10
The missing number from the data is 10
 
        
                    
             
        
        
        
Answer:
should be 6cm
Step-by-step explanation:
if you are looking at a cube