What is the greatest common factor of 14 56 and 63

The surface area of the triangular prism is .

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 percent of 18 is 24? and plz explain thx.