Last one for this test

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.

How many solutions does the nonlinear system of equations graphed bellow have?

What is 1/3x5 on anuber line what does it look like on a number line