Answer:
Bobby's economic profits for the day is $0.60.
Step-by-step explanation:
Bobby sells 20 glasses of lemonade for $0.20 per cup.
Amount earned = [tex]20\times0.20=4[/tex] dollars
The average total cost is $0.17.
So, difference in selling amount and average = [tex]0.20-0.17=0.03[/tex] dollars
Therefore, Bobby's economic profits for the day is = [tex]20\times0.03=0.60[/tex] dollars
Hence, the answer is $0.60.