What is the BEST reason why the biography includes more specific details about Helens illness than the autographs?

Which of those sequences is a geometric sequence

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.

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have