Answer:
D) 15,000
Explanation:
As we know variable cost varies according to volume of units. And when we multiply 15,000 with 20 and 16 respectively we get 300,000 and 240,000. There is 60,000 difference between them which the same with the difference of fixed costs. Let's sum total fixed and variable costs:
For Atlanta: 80,000+300,000=380,000
For Phoenix: 140,000+240,000=380,000.