Square Hammer Corporation shows the following information on its $2018$ income statement: Sales $=$ $$197,000$; Costs $=$ $$93,000$; Other expenses $=$ $$5,400$; Depreciation expense $=$ $$8,900$; Interest expense $=$ $$13,600$; Taxes $=$ $$30,440$; Dividends $=$ $$9,600.$ In addition, you're told that the firm issued $$7,900$ in new equity during $2018$ and redeemed $$9,500$ in outstanding long$-$term debt.

a$.$ What is the $2018$ operating cash flow?

b$.$ What is the $2018$ cash flow to creditors?

c$.$ What is the $2018$ cash flow to stockholders?

d$.$ If net fixed assets increased by $$25,000$ during the year, what was the addition to NWC$?$