ABC Co. has an average collection period of 45 days and an operating cycle of 130 days. It has a policy of keeping at least $10 on hand as a minimum cash balance, and has a beginning cash balance for the first quarter of $10. Beginning receivables for the quarter amount to $45. Sales for the first and second quarters are expected to be $110 and $125, respectively, while purchases amount to 80% of the next quarter's forecast sales. The accounts payable period is 90 days. What is the ending cash balance for the first quarter?