Solve the multiple-angle equation. 
Definitions:
Planning Budget
A budget created for a specific level of activity, it helps in planning and controlling costs based on projected operational activities.
Net Operating Income
The profit a company makes from its normal business operations, calculated by subtracting operating expenses from operating revenues.
Planning Budget
An estimate of future income and expenditures that is used as a guideline for financial planning and decision-making.
Total Fixed Cost
The sum of all costs that do not change with the level of output produced, such as rent, salaries, and insurance.
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