Answer:
Step-by-step explanation:
We are told that the perimeter is 48 = 2L + 2W.  This reduces to 
24 = L + W.  Next, substitute, one by one, the 3 widths 10 cm, 3.6 cm and w cm:
a)  If W = 10 cm, 24 = L + W becomes 24 = L + 10, or L = 14 cm
b)  If W = 3.6 cm, 24 = L + W becomes 24 = L + 3.6, or L = 20.6 cm
c)  If W = w, 24 L + W becomes 24 = L + w, so that L = (24 - w) cm
 
        
             
        
        
        
Answer:
your answer is B uwu have good day
Step-by-step explanation:
 
        
             
        
        
        
The answer would be 6.4% because you have to do 16% of 40 and it will give you 6.4 and as a percent it is 640%
        
             
        
        
        
Hi 
First dont panic. this one is pretty easy. 
you known that the perimeter is the addition of every sides of a figure. 
you have the total perimeter : 84.6 
so now you just have to withdraw every side you have to the total , and the missing measure will be the result. 
have a try ! you can make it.