Mazoon Company has fixed costs of $10,000 and a breakeven point of 500 units. If the company plans to produce 600 units, and sales increase by 10%, its operating income will increase by: O a 20% O b. 60% c. 30% O d. 10% e. None of the given answers Which one of the following is not considered an assumption of cost-volume-profit analysis? O a Costs are nonlinear O b. Sales mix of products sold does not change Oc. Fixed cost per unit is not constant d. Costs can be divided into variable and fixed components ke. Selling price per unit does not change with volume