According to a credit agreement with its bank, kayak requires a minimum cash balance of $30,000 at each month-end. in return, the bank has agreed that the company can borrow up to $150,000 at a monthly interest rate of 1%, paid on the last day of each month. the interest is computed based on the beginning balance of the loan for the month. the company repays loan principal with any cash in excess of $30,000 on the last day of each month. the company has a cash balance of $30,000 and a loan balance of $60,000 at january 1.