Please help me with the three requirements

Randolph Associates is a construction engineering firm that prepares detailed construction drawings for single-family homes. The market for this service is very competitive. To compete successfully Randolph must deliver quality service at low cost. Randolph presents the following data for 2016 and 2017. (Click the icon to view the data.) Engineering labor-hour costs are variable costs. Engineering support costs for each year depend on the engineering support capacity that Randolph chooses to maintain each year (that is, the number of jobs it can do each year). Engineering support costs do not vary with the actual number of jobs done in a year. Read the fequirements Requirement 1. Calculate the operating income of Randolph Associates in 2016 and 2017. 2016 Revenues Costs Engineering labor costs Engineering support costs Total costs Operating income WHI Randolph Associates is a construction engineering firm that prepares detailed construction drawings for single-family homes. The market for this service is very competitive. To compete successfully Randolph must deliver quality service at low cost. Randolph presents the following data for 2016 and 2017. (Click the icon to view the data.) Engineering labor-hour costs are variable costs. Engineering support costs for each year depend on the engineering support capacity that Randolph chooses to maintain each year (that is, the number of jobs it can do each year). Engineering support costs do not vary with the actual number of jobs done in a year. Read the fequirements Requirement 1. Calculate the operating income of Randolph Associates in 2016 and 2017. 2016 Revenues Costs Engineering labor costs Engineering support costs Total costs Operating income WHI