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 .
1 For a home of this size, the cost of an A/C unit can range from $2,800 to as much as $4,500 depending upon the brand. 2  Smaller homes that are less than 1,200 square feet, the air conditioner can be within the $400 to $1,500 price range. An air conditioning unit is capable of providing cold air to different sized rooms, and this depends on the capacity of the air conditioner; the higher power output the unit has, the more expensive it will be. 2  On average, an air conditioning unit can cost anywhere from $400 to as much as $5,000.