I think that either A or B have to be the number of days
Answer:
The relation between x and y is

Step-by-step explanation:
Given that,
The value of y varies directly as the square of x.


where r is constant of proportional.
Given that,
y= 27 and x=9
Plug y= 27 and x=9 in above relation





The relation between x and y is

(x - 4)(x + 3) = x^2 + 3x - 4x - 12 = x^2 - x - 12