Amber would like to go on the field trip this Saturday. However, she was scheduled to work 10 hours and she makes $8.50 an hour. Additionally, the field trip activity fee was $30. What is her opportunity cost to go on the field trip?

The opportunity cost is $85.

Step-by-step explanation:

The scheduled for work = 10 hours.

Money that Amber makes by earning =  $8.50 per hour.

Total money earned by Amber = 10 ×8.50 = $85

The fee of the filed trip = $30

Now we have to find the filed trip’s opportunity cost. Since we know that the opportunity cost is the amount that is left in order to get the best alternative. Therefore, if Amber goes on a field trip then he has to forgive the earning. So, the total earning $85 is the opportunity cost.