Solve 5x + 2 = 22 please help​

The table respent two linear functions the equation respented by the first tables is given

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.

Which of the following is the shape of a cross section of the figure shown below