8. became the primary commercial enterprise and were the primary means of commercial transport.

Corporation

Trucks

Explanation:

There are various methods of commercial enterprise. There can be sole proprietor, partnership arrangement, corporation and joint ventures. It is dependent on the requirements of a person who wishes to enter the business. The primary commercial enterprise is corporation. It is regulated by the government and fund is collected from the shareholders. The primary mean of commercial transport is trucks. They are used to move raw material and finished goods from factory to the stores.

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3. when u click on your profile pic, there appears four options on the top.

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6. there appears a option 'prefernces' and at that option at the right side , 'edit' is written.

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the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer