need help with this question..

Farmer Brown grows blackberries. The average total cost, average variable cost, and marginal cost of growing blackberries for an individual farmer are illustrated in the graph to the right. 40- Farmer Brown will incur losses if the market price falls below $ per crate. (Enter a numeric response using an 36- integer.) Price and cost (dollars per crate) 32- 28- N ATC 20- AVC MC 10 20 30 40 50 60 70 80 90 100 Quantity of blackberries (crates per week)