Answer:
$1000
Step-by-step explanation:
The Opportunity cost refers to the benefit that is foregone by choosing some other alternative.
If I stays at home, it costs = $100
If I go to Florida, it costs = $700
Therefore, the opportunity cost of going to Florida is the earning that I would get from staying at home.
Total saving from staying at home:
= Trip expenses + (earning - expenses)
= $700 + [5($80) - $100]
= $700 + $300
= $1000