Answer: None of A or B is a better buy.
Step-by-step explanation: We are given to select the brand from the following that is a better buy :
Brand A: 14 ounces for $44.66
Brand B: 20 ounces for $63.80
We will be using the UNITARY method to solve the problem.
Brand A :
The cost of 14 ounces = $44.66.
So, the cost of 1 ounce will be

Brand B :
The cost of 20 ounces = $63.80.
So, the cost of 1 ounce will be

Since the cost of 1 ounce in both the brands A and B is equal, so no brand is a better buy.