1 70.4% of school staff have seen bullying. 2  62% witnessed bullying two or more times in the last month and 41% witness bullying once a week or more. 13. 3  When bystanders intervene, bullying stops within 10 seconds 57% of the time. 14. 4  Been Cyberbullied 6% of students in grades 6â12 experienced cyberbullying.
Adding central air conditioning to an existing forced-air heating system in a 2,000-square-foot house averages $3,500-$4,000, and can be done by two technicians in 2-3 days, with little or no change to the existing ducting; if ducts must be added, the work time doubles, as does the cost to $7,000-$8,000 or more, according to ThisOldHouse.com .
Central air conditioner unit with 10 years warranty is more expensive than a central ac unit with 5 year warranty. Some central air conditioner units will have 5 year warranty on parts and other will have 10 years warranty on the air conditioner compressors. There seems to be little confused above the warranty.entral air cost. The average central air conditioner prices to buy minimum SEER rating (13 seers) central air conditioner unit is $2,643. Imagine having to buy 20 seers central ac unit with 5 ton.