Look at the images. 1 and 2 are the most difficult for me.

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.

The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation

Which of the following circles have their centers in the third quadrant?