Step 1: Identify what the question is asking for.Find the year of Betty's fiftieth year class reunion.Step 2: Identify the given informationThis question contains a lot of extraneous information, such as Betty's current age and her age when she graduated. The only thing that is needed to calculate the year of her fiftieth class reunion is the year in which she graduated.Graduation year = 1924Half century =50 yearsStep 3: Set up equation, substitute known values and solve.Reunion Year = Graduation Year +50Reunion Year =1924+50Reunion Year =1974