A production center is available for 8 hours per day in a factory. It is comprised of several rotary parts, and the worker operating it is required to lubricate these rotary parts once each day. It takes 2 hours to remove these parts from the equipment, lubricate them, and re-assemble them. The production center is not available for production during these times. The availability of the production center is:

75%

Explanation:

Since the production center is available for 8 hours per day in a factory, and the worker operating it is required to lubricate these rotary parts once each day.

If it takes 2 hours to remove these parts from the equipment, lubricate them, and re-assemble them and the production center is not available for production during these times;

Then the availability of the production center is 75% which is derived by : [8 hours total - 2 hours downtime / 8 hours total availability] x 100 = 75%

a progressive tax is a tax that imposes a lower tax rate on low-income earners compared to those with a higher income, making it based on the taxpayer's ability to pay. that means it takes a bigger percentage from high income earners than it does from low income people.

being born in poverty would limit the people's chances, opportunities and benefits.

this happen because of several things, such as:

- poor people tend to gain less access to good education and nutrition. this mean that their chance to obtain high paying jobs would also be limited.

- poor people tend to socialize with other poor people while the rich tend to socialize with other rich people. this means that simply throguh their social circle, rich people would have more business opportunities compared to the poor people.

- rich people tend to have more capital in their disposal. this would benefit them in business since it is far easier for them to fund their business operation compared to poor people.