Ritter Corporations accountants prepared the following financial statements for year-end 2019: (Do not round intermediate calculations.) RITTER CORPORATION Income Statement 2019 Revenue $ 760 Expenses 570 Depreciation 91 Net income $ 99 Dividends $ 79

RITTER CORPORATION Balance Sheets December 31 2018 2019 Assets Cash $ 56 $ 67 Other current assets 166 172 Net fixed assets 371 391 Total assets $ 593 $ 630 Liabilities and Equity Accounts payable $ 116 $ 127 Long-term debt 141 147 Stockholders equity 336 356 Total liabilities and equity $ 593 $ 630 a. What is the change in cash during 2019? b. Determine the change in net working capital in 2019. c. Determine the cash flow generated by the firms assets during 2019.