Fixed costs are $350, variable costs per unit are $7, and volume of output is 50 units. What are total variable costs? $350 $450 O $550 $650 Fixed costs are $350, variable costs per unit are $7, and volume of output is 50 units. What are Total Costs? $600 O $800 O $500 O $700 Calculate profit if the contribution margin is 5, volume of output is 475 units and fixed costs are $900. O $4,475 O $2,475 O $3,475 O $1,475