Assume the following (1) sales = $200,000. (2) unit sales = 10,000, (3) the contribution margin ratio = 36%, and (4) net operating income = $10,000. Given these four assumptions, which of the following is true? Multiple Choice The total fixed expenses = $128,000 The variable expense per unit * $7.20 The total contribution margin- $72,000 The break-even point is 8,214 units