Read https://www.wyzant.com/resources/answers/2997/how_do_you_figure_out_how_to_determine_the_best_method... and I think that will answer your question (:
        
             
        
        
        
Answer:
kqw1qw1lo12
Step-by-step explanation:
 
        
             
        
        
        
Answer:
4.5:7.25
Step-by-step explanation:
she ran 7.25 miles so ig that would be it but im not 100% sure
 
        
             
        
        
        
Answer:
ummmmmmmmmmmmmmmmm
Step-by-step explanation:
hmmmmmmmmmmmm
 
        
             
        
        
        
The little lines in each side show that the sides are the same length but you also need to find the length of the smaller side which isn’t the same. For this imagine that the shape is split into a square and a triangle and you need to find the long side of the triangle using Pythagoras 
a^2 + b^2 = c^2
20^2 + 20^2 = 800
Square root of 800 = 28.3
Then do 28.3-20=8.3
So I think the answer is 20+20+20+20+20+8.3=108.3 cm