please answer all 3 parts, thank you!

Penguins Inc. reported net earnings of $775,000 for the year ended September 30,2022. During the year, depreciation expense was $260,000. An analysis of the year end balance sheet revealed the following: accounts receivable decreased by $350,000, prepaid expenses increased by $95,000, accounts payable decreased by $280,000, income tax payable increased by $5,000 and the company realized a $10,000 gain on the sale of equipment. The cash received on the sale of the equipment was also $10,000 (i.e. net book value of equipment was $0 ). a) Prepare the operating activities section of the cash flow statement using the indirect method. (8 marks) b) Assume that the total change in cash and cash equivalents for the year was - $470,000. Explain how this is possible given you analysis in part a) of this question (Provide specific examples for full marks). (4 marks) c) What are the main purposes of the cash flow statement? ( 3 marks)