Combine like terms to create an equivalent expression 2s+ (-4s) pls help

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.

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?

Which of the following graphs could represent a cubic function?