Answer:
k = 3
Step-by-step explanation:
Given that y and x are directly related then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition y = 81 when x = 27
k =
=
= 3
Kalil bought 1 pound and 1/4. ( 1 1/4) It means: 1 pound and a quarter pound.
12 because the rest of the numbers are all similar except 12