A day is when the Earth completes a rotation compared to the stars. A day is measured from sunrise to sunrise (the Sun is in the same position in the sky again).

Parallaxes of stars were not observed by ancient astronomers, which is one of the reasons they rejected the idea of a heliocentric model of the universe (everything orbits the Sun) in favor of the geocentric model (everything orbits the Earth). Why were they unable to observe stellar parallaxes? 

Dennis (give up) ____ smoking two years ago. He (used to, smoke) ____ 40 cigarettes a day.

Explain configuration in enterprise resource planning (ERP) systems. What are its limitations?

Explain the benefits of an enterprise resource planning (ERP) application to multinational organizations.

Describe how businesses used computers for inventory purposes before the advent of the Internet.

Which of the following companies has the largest market share in the enterprise resource planning industry?

Yesterday before I (leave) ____ my apartment, I (unplugge) ____ the iron.

Training an organization’s users to become in-house trainers for enterprise resource planning systems reduces the total expenses.

What are the different business functions integrated by enterprise resource planning (ERP) products?