15 apartments on 3 floors = apartments per floor

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.

The graph of y=x3 is transformed as shown in the graph below. which equation represents the transformed function?

What is the period of the sinusoidal function ?