The topic sentence is usually the first sentence of a paragraph, but not necessarily. It may come, for example, after a transition sentence; it may even come at the end of a paragraph. Topic sentences are not the only way to organize a paragraph, and not all paragraphs need a topic sentence.
1 Network installation costs are also influenced by the number of areas in which installation services will be performed. 2  For a two-to three-room installation, costs may range from approximately $160 to $250, while an entire house with network installations in six to seven rooms can cost about $420 to $840. Plan on spending at least $100 to $150 per room. 2  So for instance, if you were to have three rooms, it could cost about $300 to $450. 3  According to Homewyse.com, the average cost to install computer network wiring is $149.93 to$196.03 per connection.
Pricing starts at $11,000 for a one-drawer KeyLink System with a 140-slot capacity, to $20,000 for a 3-drawer 672-key system. This system price includes all necessary accessories, setup and training, as well as the first year maintenance fee. Discounts are available for existing BuildingLink Subscribers.