Answer:
its easier to receive a bachelor's degree there.
The opportunity cost of attending class is the $15 that could have been made by watching a neighbor's child.
Opportunity cost refers to the benefits that one gives up in order to enjoy another benefit, that is, the benefit that is sacrificed.
In this question, two benefits are given up, but the real opportunity cost is the one that have the highest value, which is the $15.
Writes in their own language as used colloquially.
Answer
The answer and procedures of the exercise are attached in the following archives.
Explanation
You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.