Acollege student is faced with a difficult decision of how to spend one hour tonight. she could babysit her professor's child at an hourly wage of $7; she could work at the college library at a wage of $6; or she could finish her economics homework assignment. if she chooses to complete her homework assignment, she has incurred an opportunity cost equal to:

The opportunity cost is $7.

Explanation:

The opportunity cost involved in a decision is the cost of sacrificing its second-best alternative.  

A college student could babysit her professor's child at an hourly wage of $7; she could work at the college library at a wage of $6; or she could finish her economics homework assignment.

If she decides to finish her assignment she is letting go wage of $7 and $6. Here, the second-best alternative is $7, so it is the opportunity cost.

answer; niosh, the national institute for occupational safety and health;