please answer and make solution

For questions 9 to 11 Arvin is managing his own take-out pizza store. The pizza sold for P120.00 per box. The fixed cost he needs to pay for a month amounts to P20,000.00 which includes salaries of the employees, rent and utilities. The box of pizza costs P50.00. 9. What is the break-even quantity n. 255 c. 285 b. 220 d. 305 10. How much profit will he earn if he sells 400 boxes? b. P8,000.00 c. P9.500.00 c. P10,000.00 d. P11,500.00 11. How many boxes of pizza must be sold to earn a profit of P50,000.00? a. 1,000 boxes c. 1,100 boxes b. 1,020 boxes d. 1,250 boxes