Kenna's home network

The wire that connects to the router is a co-axial cable​ that has many layers, one of which is copper wire and insulation, the co-axial cable is very thick as well. This wire comes into my house through the family room, and connects to the router. A desktop computer connects to the router, and the rest of my devices connect to wifi. 2 sets of speakers, 2 laptops, 4 iphones, an ipad, an xbox and a printer connect through the wifi. My internet service provider is comcast and my internet bill is around $60 dollars per month, multiplied by 12 is $720 per year.