Step-by-step explanation:
10 is the value of A ......
 
        
                    
             
        
        
        
Associate property
It’s right
        
                    
             
        
        
        
Answer:
480 Litres
Step-by-step explanation:
Percentage increase = 20% × 400
New value =
400 + Percentage increase =
400 + (20% × 400) =
400 + 20% × 400 =
(1 + 20%) × 400 =
(100% + 20%) × 400 =
120% × 400 =
120 ÷ 100 × 400 =
120 × 400 ÷ 100 =
48,000 ÷ 100 =
480
 
        
             
        
        
        
It should me b I don’t know if it is but it should be
        
             
        
        
        
Step-by-step answer:
Given an enlargement from preimage (ABC) to image (A'B'C').
Need to find scale factor.
Solution:
Scale factor = linear size of image / linear size of preimage.
From the accompanying diagram, we see that
L(preimage) = AC = 4 units
L(image) = A'C' = 12 units
Therefore 
Scale factor = L(image) / L(preimage) = 12 / 4 = 3