Roderick has an Internet service that charges by the hour.This piecewise function shows the cost of the Internet service based on the number of hours that Roderick uses the Internet.Last month,Roderick used the Internet for 7.5 hours.What was he charged?

Piecewise Function

A mathematical function defined by multiple sub-functions, each applying to a certain interval of the main function's domain.

Internet Service

A service that provides access to the Internet, including broadband, DSL, fiber-optic, and satellite connections.