Assume the following (1) variable expenses = $285,000, (2) unlt sales = 10,000, (3) the contribution margin ratio = 20%, and (4) net operating income = $10,000. Given these four assumptions, which of the following is true? - Multiple Choice The total contribution margin-$228.000 The break even point in sales dollars is $306.250 The total sales 5342.000 The total fed expenses $57.000