Answer:
c. $0.6
Step-by-step explanation:
The economic profit is the difference between total income and total cost. The total cost is the multiplication of the average cost by the number of sold glasses.
Total income = 20 * 0,2 = 4
Average cost = 0,17
Total cost = 0,17 * 20 = 3,4
Economic profit = Total income - total cost = 4 - 3,4 = 0,6