In the central city grand prix, out of 30 cars that started the race, 12 of them finished. what percent of the cars finished the race? what percent did not finish the race?

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.