Assume the following (1) selling price per unit =$25, (2) variable expense per unit =$13, (3) unit sales =2,190, and (4) total fixed expenses =$25,000. Given these four assumptions, net operating income must be: Multiple Choice $29.750 $1,280. $3,470 $27,890 Assume the followng (1) variable expenses =$299,000, (2) unit 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? Mutiple Choice The break-even point in soles dollars is $323,750 The totar fixed expenses =$59,800 The total contribution margin =$230,200 The totel sales =$358.800 Assume the following (1) selling price per unit =$25,(2) total foxed expenses =$25,100,(3) the contribution margin ratio =39%, and (4) net operoting income =$10,000. Given these four assumptions, unit sales must be: Multiple Choice 4,500 units. 3,600 units. 2.196 units: 1,404 units