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 .
The price to install central air conditioner units with heating unit is between $6,500 and $15,000. The HVAC installation costs are for complete heating and cooling system and labor cost. To get little more accurate price in your area, check out the links below.f youâre planning to buy air conditioners with higher seer rating and more Ton the HVAC price will be higher than this. Central ac units with 5 tons and 18 seer rating would cost about 3 to 5 grand or even more.