Answer:
the opportunity cost is $64
Step-by-step explanation:
The computation of the opportunity cost to attend the class at the evening is
= Parking fee saved + earning per hour × number of hours
where,
Parking fee saved is $4
Earning per hour is $15
And, the number of hours is 4
Now place these values to the above formula
So, the opportunity cost of attending the class is
= $4 + $15 × 4
= $4 + $60
= $64
hence, the opportunity cost is $64