Exercise $21-1($Static$)$ Classification of cash flows $[$LO$21-3,21-4,21-5,21-6]$

Listed below are several transactions that typically produce either an increase or a decrease in cash. Choose the appropriate option to indicate whether the cash effect of each transaction is reported on a statement of cash flows as an operating, investing, or financing activity.

$\backslash$table$[[$Financing$,$Transactions$],[,1.$ Sale of common stock.$],[,2.$ Sale of land.$],[,3.$ Purchase of treasury stock.$],[,4.$ Merchandise sales.$],[,5.$ Issuance of a long$-$term note payable.$],[,6.$ Purchase of merchandise.$],[,7.$ Repayment of a note payable.$],[,8.$ Employee salaries.$],[,9.$ Sale of equipment at a gain.$],[,10.$ Issuance of bonds.$],[,11.$ Acquisition of bonds of another corporation.$],[,12.$ Payment of semiannual interest on bonds payable.$],[,13.$ Payment of a cash dividend.$],[,14.$ Purchase of a building.$],[,15.$ Collection of nontrade note receivable $($principal amount$).],[,16.$ Loan to another company.$],[,17.$ Retirement of common stock.$],[,18.$ Income taxes.$],[,19.$ Issuance of a short$-$term note payable.$],[,20.$ Sale of a copyright.$]]$