1) In a proportion: y/x=k
k is your constant of proportionality.
x is your independent variable and y is your dependent variable.
Since you need 3 oz of flour for each 2 oz of sugar, y=3 and x=2.
So k=1.5   (3/2)
3) 
a) y/x as a showed above. This question is very similar to #1.
b) y/x=k
 
        
             
        
        
        
6 times 5 is 30 so 4 times 5 eaquls 20
The answer is 20
        
             
        
        
        
Answer:
I think the correct answer is D 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
5/2 (A)
Step-by-step explanation:
 
        
             
        
        
        
<span>A small cell has a large Surface are/volume ratio and therefore can exchange molecules with it's external environment rapidly. 
Here, we can see the ratio is 6:1, which is very large ratio, so it will transport very rapidly. Thus,  it denotes that cell can easily get the material it needs that move across it's surface
Hope this helps!</span>