Brandon can paint a fence in 12 hours and elaine can paint the same fence in 11 hours. 9) how long will they take to paint the fence if they work together?

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.