I NEED HELP I am gonna be posting a lot more questions because I have been stuck on them for 2 day :(

Use set buikder notation to represent the following set: {, -2, -1, 0}

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?