A business hires machinery for use in its factory. The rental charge for one machine is $12000. Each machine can make 60000 units. The business gave the information below. number of units / total costs excluding rental cost of machinery ($): 90000 → 510000, 120000 → 660000. What is the total fixed cost of producing 100000 units?
- A$80000
- B$84000
- C$150000
- D$162000