Question 22 3.5 pts 10 MC 8 ATC Price and cost (dollars per grooming) 6 2 MR D O 40 60 80 100 120 140 Quantity (groomings per day) Donna owns the only dog grooming salon on Lonely Island. The figure above shows the dog grooming market. Donna is a single-price monopoly that earns and economic profit of $ per day. Enter a value. Do not use the "$" sign