Which expression best represents the graph?

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.

What is the slope of the line shown below?

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab