Assume the following (1) sales =$200,000,(2) unit sales =10,000,(3) the contribution margin ratio =42%, and (4) net operating income =$10,000. Given these four assumptions, which of the following is true? Muitiple Choice The break-oven point it 6.875 units The totnl variabie expenses =$84.000 The total fieed expenses =$74,000 The total contritation margin 5$116,000