Ritter Corporations accountants prepared the following financial statements for year-end 2012:

RITTER CORPORATION
Income Statement
2012
Revenue	$	750
Expenses		565
Depreciation		90
Net income	$	95
Dividends	$	75

RITTER CORPORATION
Balance Sheets
December 31
		2012			2011
Assets
Cash	$	65		$	55
Other current assets		170			165
Net fixed assets		390			370
Total assets	$	625		$	590
Liabilities and Equity
Accounts payable	$	125		$	115
Long-term debt		145			140
Stockholders equity		355			335
Total liabilities and equity	$	625		$	590

a.	What is the change in cash during 2012? (Do not round intermediate calculations.)

Change in cash

$

b.	Determine the change in net working capital in 2012.(Do not round intermediate calculations.)

Net working capital

$

c.	Determine the cash flow generated by the firms assets during 2012. (Do not round intermediate calculations.) I ALREADY HAVE A & B ANSWERED. PLEASE HELP ME IN ANSWERING PROBLEM (C). PLEASE SHOW ME EXACTLY HOW TO DO IT. I HAVE TRIED IF MANY TIMES WITH NO SUCCESS. I WANT TO UNDERSTAND IT. THANK YOU