14. Apple has $10,000 in assets entirely financed with equity. Google has $10,000 in assets, but these assets are financed $5,000 in debt (with a 10% rate of interest) and $5,000 in equity. Both forms sell $10,000 units of output at $2.50 per unit. The variable costs of production are $1, and fixed production costs are $12,000. a.what is the operating income for both companies? b.what are the earnings after interest? c.If sales increase by 10 percent to 11,000 units, by what percentage will each firm's earnings after interest increase? d.why are the percentage changes different