Raner, Harris and Chan is a consulting firm specializing in information systems for medical and dental clinics. The firm has two offices-one in Chicago and one in Minneapolis. It classifies the direct costs of consulting jobs as variable costs. A contribution format segmented income statement for the company's most recent year is given below: Required: 1-a. Compute the companywide break-even point in dollar sales. 1-b. Compute the break-even point for the Chicago office and for the Minneapolis office. I-c. Is the companywide break-even point greater than, less than, or equal to the sum of the Chicago and Minneapolis break-even boints