What is the smallest integer price that would make a firm willing to produce a positive amount?

What is the smallest integer price that would make a firm willing to produce a positive amount? 3. Suppose that Dent Carr"s long-run total cost of repairing s cars per week is: lrtc(s) = 3s2 + 12. If the price he receives for repairing a car is $24, then in the long run, how many cars will he fix per week if he maximizes profits?