Abarber charges \$12$12 for a haircut. his operating expenses are, on average, \$37$37 per day. he calculates his profit by subtracting his operating costs from the money he earns from the haircuts he gives. in a given day, the barber expects to make a profit of at least \$86$86. if the barber gives hh haircuts in a day, which inequality best models this situation?