Mazoon Company has fixed costs of $12,000 and a breakeven point of 600 units. If the company plans to produce 900 units, and sales increase by 10%, its operating income will increase by: a. 20% O b. 10% O c. None of the given answers O d. 60% O e 30% Company XYZ produces and sells 40.000 units.at this level, the company is making a profit of $37,000. Assuming total fixed expenses of $3,000 and variable expenses per unit of $2, how much was the selling price per unit? O a. 6 O b. 8 O d. 3 O e. 4