While in class you were introduced to the varieties through which software is made available either for free for a fee. You are required to outline and briefly explain any five (5) of these forms with examples.​

Css3 is the latest evolution of the cascading style sheets language and aims at extending css2.1. it brings a lot of new features and additions, like rounded corners, shadows, gradients, transitions or animations, as well as new layouts like multi-columns, flexible box or grid layouts.credits to medium for making this answer credits to google for copying this answercredits to me for putting this answer on your question

Tracked audio is based on mathematical algorithms.

1. view> toolbar> reviewing2.  right click on any  toolbar> reviewing3.  double click on  trk    in the status bar