i cant figure out how to calculate the operating expense

The accountant for Dolfin Corporation prepared the income statement below. The auditor has asked you to use this statement to provide additional information to Dolfin Corporation on the Final Questions panel. The auditor has asked you to prepare additional information about Dolfin Corporation's results for last year. Use the data shown on the income statement in your calculations. 1. Calculate the operating expenses for Dolfin Corporation