The ratio of burgers to shakes served at the diner is 4:1. Last week, the diner served 20 shakes. How many burgers did the diner serve?

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.