Each dvd storage case is about 1/5 inch thick. what will be the height in simplest form of 12 cases sold together?

1. convert. simplify your answer and write it as a proper fraction or as a whole or as a mixed number. 4oz=_ pounds 2. find 1/3 of 66

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

Need asap. solve for the following inequality