Find all the roots of the quadratic

Find the nonpermissible replacement for binthis expression. b2/5b +5

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 number is 7 units left of -15?