Answer: D 
Step-by-step explanation: I think
 
        
             
        
        
        
If you plug in the # the only one that is correct is y-8=-0.2(x+10)
 
        
             
        
        
        
Answer:

Step-by-step explanation:
<u>Similar Triangles</u>
By looking at the construction of the figure, we can safely assume both triangles are similar, i.e. their internal angles are equal and their sides are proportional. Following the proportion of the heights and bases of both triangles we can set this relationship:

Simplifying both fractions

Solving for x

 
        
             
        
        
        
Subtract 9 from both sides of the equation
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
hair growth is the bottom one y + 3x
total area is the top one y = 3x²
bacteria is the middle one y = 3ˣ