This is my friend rate her 1-10 1 being worst 10 being cute

Me on this online 24 game! you have to add, subtract, multiply, or divide any of these to equal !

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.

1. what is the measure of ∠abc? what is the measure of ∠abd?