Problem 9: The cash balance of Darwin company on January 1, 2020 was 80,000. During 2020, the changes in certain amounts were: Accounts receivable Inventory Accounts payable 20,000 increase 15,000...

Extracted text: Problem 9: The cash balance of Darwin company on January 1, 2020 was 80,000. During 2020, the changes in certain amounts were: Accounts receivable Inventory Accounts payable 20,000 increase 15,000 decrease 30,000 decrease Total sales and cost of goods sold were 300,000 and 200,000 respectively. All sales and purchases were made on credit. Various expenses of 50,000 were paid in cash. 29. There were no other pertinent transactions. What is the cash balance on December 31, 2020?