A barber charges \$12$12dollar sign, 12 for a haircut. His operating expenses are, on average, \$37$37dollar sign, 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$86dollar sign, 86. If the barber gives hhh haircuts in a day, which inequality best models this situation
so basically the barber wants to make a profit of 86 dollars since profit is total revenue minus expenses then we know that the barber total revenue is 12h and the expenses for the day are 37.
