Assume the following (1) sales = $200,000, (2) unit sales = 10,000. (3) the contribution margin ratio = 25%, and (4) net operating income = $10.000 Given these four assumptions, which of the following is true? Multiple Choice The total fred expenses $150.000 The variable expense per unit 55 The total contribution margin = 550,000 The total fixed expenses = 5150.000 The variable expense per unt55 The total contribution margin = 550.000 The break even point is 9000 units