Answer:
Option C.
Step-by-step explanation:
y and x have a Direct variation if the function looks looks like y = mx (b is equal to zero). The only option that can be written like that is option C. And it can be written as
y = 26x
108
x = (n - 2)180/n
n = 5
x = (3)(180)/5
x = 108
3/8
Multiply, then divide.