How many units must be sold if contribution margin is 20, fixed costs are $5,000 and profits are $25,000? O 10,500 units O 1,500 units 2,000 units 0 2,500 units How many units must be sold i contribution margin is 10, lixed costs are $400 and profits are $2,500? 490 units 390 units 0 290 units 190 units If revenue per unit is $55, fixed costs are $130, and variable cost per unit is $50, what is the break-even quantity? O 16 units 046 units 36 units 26 units