This is calculated as a percentage of a worker's earnings. As a worker makes more money, he or she will be taxed a higher percentage of income.

a. sales tax
b. property tax
c. individual income tax

c. individual income tax

The correct answer for this question is c. individual income tax. Individual income tax is calculated as a percentage of a worker's earnings. As a worker makes more money, he or she will be taxed a higher percentage of income. This is commonly referred to as a progressive tax system, where tax rates increase as income levels rise.

The correct answer is c. individual income tax.

To arrive at this answer, we need to understand the concept of income tax and how it is calculated. Income tax is a tax imposed by the government on an individual's earnings, such as wages, salaries, and investments. It is calculated as a percentage of the individual's income.

When a worker earns more money, they are taxed at a higher percentage of their income. This is known as progressive taxation. Progressive taxation means that as a person's income increases, the tax rate also increases accordingly. The idea behind this approach is to ensure that those who earn more contribute a higher percentage of their income in taxes, while those who earn less pay a lower percentage.

On the other hand, sales tax is a different type of tax imposed on the purchase of goods and services. It is not directly related to a worker's earnings. Property tax, on the other hand, is a tax imposed on the value of real estate or personal property. It is assessed based on the value of the property and not on an individual's income.

Therefore, the answer to the question "This is calculated as a percentage of a worker's earnings. As a worker makes more money, he or she will be taxed a higher percentage of income" is c. individual income tax.