The answer is definitely D.
MIT defines calculus as the study of change, usually in motion.
To ensure the stability of the economic system
Incentives, initiative, prices, decisions
Incentives such as taking initiative interpreting prices , making their own decisions and fending for themselves in the marketplace
Well the Tang made China's government stronger. They went back to using the civil service examinations for choosing government officials. Government officials could no longer use family connections to get them jobs. They also gave land to farmers and brought back order to the countryside. The effects helped China rebuild itself, offering better standers of living to its people.
Suppose you had been Joseph Plumb Martin at Yorktown. What would you like to have told
General Washington about your experiences in the war? What emotions would you have
shared with him? Express your ideas in a short letter that the soldier might have written to
the general. Your letter should clearly describe experiences and emotions related to the war.
Be sure to use correct letter format and correct spelling and grammar.
