Problems 21,27 and 36 please and thank you

7-21 The following is a list of items to be included in the cash flow statement of the Broc man Lawn Sprinklers Company for the current year: (a Payment for purchase of trenching equipment, $6,000 (b) Payments to suppliers, $3,200 (c) Receipt from sale of land, $1,000 (d) Collections from customers, $15,800 (e) Withdrawals by owner, $2,500 Receipt from issuance of note payable, $4,000 (g) Payments to employees, $5,600 (h) Beginning cash balance, $I, 200 Required (l) Prepare the company's cash flow statement. (2) If net sales were $69,000, compute the company's operating cash flow margin