Which question? 21 or 22?
        
             
        
        
        
You just put the scale of one building on one side and the scale of the similar building on other side, with width and length written in same place (denominator or numerator). With x for the part that you dont know
Length of one building / width of one building = length of other building / width of other building
12 / 9 = 100 / x
Solve for x, by cross-multiplying
12 * x = 100 * 9 
12x = 900
X = 900/12
X = 75 ft
        
             
        
        
        
Answer:
Area of the walkway = 8<em>x </em>+ 24
Step-by-step explanation:
Area of the total backyard = 
Area of total backyard = 
Now, Area of the rectangular garden = 
Area of the rectangular garden = 
Now area of the walkway poured with concrete = Area of the backyard - Area of the rectangular garden
= 
= 
= 8<em>x</em> + 24  
  
 
        
             
        
        
        
Answer:
the are would be 18
Step-by-step explanation:
bc 2x3=6 and then 4x3=12 so 12+6=18