The seven tallest mountains in the United States are all contained within a single state -- Alaska. In fact, the highest point in the continental United States, Mount Whitney in California, is exceeded in height by 16 Alaskan mountains. All seven mountains tower higher than 14,000 feet.
Most homeowners report spending between $3,675 and $7,155 to have air conditioning installed. This price is more typical of a central A/C unit installation rather than a window air conditioner addition which typically averages about $300.Your total cost for the job will depend on the type of system you choose.ost homeowners report spending between $3,675 and $7,155 to have air conditioning installed. This price is more typical of a central A/C unit installation rather than a window air conditioner addition which typically averages about $300.
1 According to the RemodelingExpense.com cost estimator, a basic ductless air conditioning system installation costs $1,400 to $1,600, with a total average cost per unit of $1,500.2  A better type of work can cost $1,800.00 to $1,975.00, or a total average cost per unit of $1,887.50. According to the RemodelingExpense.com cost estimator, a basic ductless air conditioning system installation costs $1,400 to $1,600, with a total average cost per unit of $1,500.