Chad sells custom t-shirts with five of his friends. they want to make enough money so that, after splitting the earnings evenly, each person earns $40. (heh. dumb me is back with another one. this is from apex. haaalp.)

Problem 3 a bank charges a service fee of $7.50 per month for a checking account. a bank account has $85.00. if no money is deposited or withdrawn except the service charge, how many months until the account balance is negative