5. Engineers and scientists at PLC performed research into whether another kind of post-consumer plastic not currently used in its plastics extrusion process could be used. Operating Investing Increase (+) Cash Activity Financing Decrease (-) Cash 6. Throughout the year, PLC participated in several trade shows that featured green products for use by parks and recreation facilities. For each trade show, PLC incurred cash expenses for transportation, registration, meals and lodging, and booth setup. Operating Investing Increase (+) Cash Activity Financing Decrease (-) Cash Solar panels were installed on PLC's administrative offices to supply 7. part of the elec-tricity needed for its operations. PLC paid cash. Operating Investing Increase (+) Cash Activity Financing Decrease (-) Cash 8. Six Toyota Prius Hybrid automobiles were purchased for the use of the sales staff. PLC paid cash. Operating Investing Increase (+) Cash Activity Financing Decrease (-) Cash 9. PLC issued common stock during the year to help finance growth. Operating Investing Increase (+) Cash Activity Financing Decrease (-) Cash New production equipment that is 75% more energy efficient than the 10. old equipment was purchased for cash.