Please help me through these MCQ..

1.Menard quit his high school teaching job, which paid $60,000 per year, to start a business that prepares students for the SAT exam. His first year in business generated the following revenues and costs:

Quantity of FC VC TC Output 100 50 WN D 100 250Revenues $120,000 Costs Supplies 30,000 Employees 15,000 Menard's salary 55,000