Problem:
 The area of the patio of a relative's house is 20 square meters.
 The width of the patio is 2 meters.
 What is the length of the patio?
 Solution:
 The area is:
 A = (w) * (l)
 Where,
 w: width
 l: long
 Clearing l we have:
 l = A / w
 Substituting values:
 l = 20/2
 l = 10 meters
        
             
        
        
        
Step-by-step explanation:
it's something in algebra i don't remember but basically the top number (12) has the x on the bottom which is multiplication and the bottom number (8) has addition so those tell u how ur supposed to get those numbers 
so basically u need to find two numbers that add up to 8 and multiply to 12 so the factors are 6 and 2 because 6 • 2 is 12 and 6 + 2 = 8. hope this helps
 
        
                    
             
        
        
        
Answer:
There are 21 students.
Step-by-step explanation:
If there are 21 students, and each of them had $21 then this would equal a total of $441 because 21 multiplied by 21 equals 441.
Hope this helps,
Trey 
 
        
             
        
        
        
The answer to this question is 1686.