What’s the area?

Which best explains why this triangle is or is not a right triangle?

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.

The function models the number of accidents per 50 million miles driven as a function