Answer:
The tax rate is the same for all income levels.
Explanation:
A proportional tax system is a tax mechanism that applies equal rates to all income brackets. This system does not segregate based on income earned. The proportional tax system is also the flat rate system.
Since the proportional tax system applies the same rate to all taxpayers, it means that the low income, middle, and high-income earners pay tax at the same rate. The proportional tax system contrasts with other methods, such as the progressive tax system that considers income levels.
Answer:
The answer is "$5500".
Explanation:
Analysis Differential:
Make Buy
Cost of variable
Fixed- cost
Purchasing cost
Cost of opportunity
Total relevant cost
Increasing operating income 
it is likely that John chooses this oil company because of their good services
Answer and Explanation:
Purpose of Ethics- Ethical codes are the fundamental principles that accounting professionals choose to abide by to enhance their profession, maintain public trust, and demonstrate honesty and fairness.
Nature of Ethics- Independence and objectivity, Integrity, Confidentiality, professional confidence and professional behaviour.
Role of Ethics:
Understanding the ethical frameworks for independence, integrity, confidentiality and professional competence can help decision-making & enhance reputation of the field of accounting.