A) high transparency of visible light 
significance= allows photosynthesis to happen and speed up chemical reactions
b) high cohesion because of hydrogen bonding 
significance=  transport of water relies on water being pulled up around the plant.
        
             
        
        
        
Answer:
Just a guess but I think 5
Step-by-step explanation:
The top right square on all boxes is the difference of the second box and the first box which equals the third box. This rule is applied to all of the other boxes so if I'm not wrong the question mark should be 5
 
        
                    
             
        
        
        
Answer:
18x + 24 or c
Step-by-step explanation: