What's the 50th term of the sequence 1.2n + 5 ?

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.

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd