I could really use some help , ive never done this before .:,)

What is the value of y? round to the nearest tenth

Find the slope of a line given the following two points

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.