Answer:
The range of this set of numbers is 9
Step-by-step explanation:
The range is the greatest number subtracted by the lowest number
in this problem that is 21-12
 
        
                    
             
        
        
        
Answer:
2800
Step-by-step explanation:
solution:
here, 
 length=40 meter
 Breadth=35 meter
 height=2meter
 area=?
 we have,
 A=l×b×h
 =40×35×2
 =2800 ans.
 
        
             
        
        
        
Umm im not sure maby like 1+1 or sum
        
                    
             
        
        
        
Given,
 Nepali speaker : 80% (Y)
 Maithili speaker : 60% (X)
We know that,
 Both language speaker = Y -X
Now,
 Y- X 
 = 80- 60
 = 20
Therefore, 20% people speak both languages
 
        
             
        
        
        
The two equations represent the proportional relationship.
y=3x and y=12x are proportional relation ship equations
proportion equations can be defined as
If we change x the y will change in the same proportion.
<h3>What is the proportional relationship?</h3>
Proportional relationships are relationships between two variables where their ratios are equivalent.
 Another way to think about them is that, in a proportional relationship, one variable is always a constant value time the other. 
That constant is known as the constant of proportionality.
proportional relationship equation contain (0,0) points
If we put x=0
This  will give us,y=0
If we put x=0, in y=12x
It will give y=0
put if we put x=0 in
y=3x it will give us y=0
hence these two equations represent the proportional relationship.
To learn more about the equation visit:
brainly.com/question/2972832
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