Answer:
The correct answer to the following question is $30 .
Step-by-step explanation:
Opportunity cost can be described as the benefits that a person ( who can be an investor or individual or even a company ) is missing out on , if he or she chooses one alternative over the other. This cost is not shown in financial statements but it is important for a owner or manager to understand what potential opportunity he or she is missing out on if chooses one over the other.
In the given question Abby chooses to work for Lewis who are giving her $40 to watch their toddler, so here the next best alternative that she is missing on is $30 that Gilbert's would have given her.