
If I understood correctly and didn't make any mistakes...
Answer:
The constant of variation is 3
Step-by-step explanation:
Given.


And y is directly related to x
∝ 
Here k is constant of variation

--------------(1)
Put the
and
value in equation 1.


So, the constant of variation is 3.
Answer
last one
Step-by-step explanation:
5 1/4 - 3 1/9
5 9/36 - 3 4/36
2 5/36 is final answer