Stacy owns a hair salon and haircuts are $10. She charges hairdressers $20 per hour to rent a chair and serve clients. What is the minimum number of haircuts a hairdresser should give per hour to earn money at Stacy's salon?
Two
Three
Four
Five

Three.

Explanation:

Since each haircut is $10, they need to do 2 haircuts to pay to rent the chair. Doing one more haircut would give them profit. Therefore, three haircuts would be the minimum to earn money.

3

Explanation:

they want to have enough money to pay the 20 so 2 put they also need profit