Which ones are equal to eachother & why. A, B,C or D?

Taking algebra two apex courses and need with these questions

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

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.