$ Number of units sold Selling price per unit Variable selling expense per unit Variable administrative expense per unit Fixed selling expenses Fixed administrative expenses Beginning merchandise inventory Ending merchandise inventory Merchandise purchases 20,000 30 $ 3.0 $ 2.5 $ 30,000 $ 50,000 $ 24,000 $ 19,000 $340,000 What is the net operating income? Multiple Choice $45,000 $55,000 $75,000 $65,000