Aconference planner has put together 280 binders for attendees and another 31 binders for presenters. how many total binders did the planner put together for attendees and presentres?

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 if no money is deposited or withdrawn except the service charge, how many months until the account balance is negative