If A= { 2, 4, 6, 8, 12 } and B={ 2, 4, 8 }, then find the set notation to represent { 6, 12 }.​

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.