Total = 21 feet
if each is 3 feet
21/3 = 7
Therefore, there are 7 sections
 
        
             
        
        
        
Given:
y is directly proportional to x.
 when
 when 
To find:
The equation that connects y with x.
Solution:
It is given that, y is directly proportional to x. So,

 ...(i)
                     ...(i)
Where, k is the constant of proportionality.
We have,  when
 when  . Substituting these values in (i), we get
. Substituting these values in (i), we get
 
 
Divide both sides by 5.
 
 
 
 
Substituting  in (i), we get
 in (i), we get
 
  
Therefore, the required equation is  .
.
 
        
             
        
        
        
Answer: the answer is c or d, im not exaclty positive but i want to say the answer is d. 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
8
Step-by-step explanation:
4 + (x + 1)
4 + 4
8
Hope this helps!
brainliest?