Find the mean of the job salaries

Ill mark the brainliest if you me with the these three questions 7,8,9

Val and tony get paid per project. val is paid a project fee of $44 plus $12 per hour. tony is paid a project fee of $35 plus $15 per hour. write an expression to represent how much a company will pay to hire both to work the same number of hours on a project.

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)