The distance traveled by a malfunctioning car can be modeled by the radical function s(t)= √ 5t+1-1 where s is the number of miles traveled after t hours

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 if no money is deposited or withdrawn except the service charge, how many months until the account balance is negative