Preston has to make four phone calls to clients today. the call to mr. miller will take about an hour to complete, the call to ms. winnecuit will take about five minutes to complete, the call to mr. drudge will take about thirty minutes and the call to mrs. freich will take about fifteen minutes to complete. if all the calls are equally important, who should preston call first? a. mr. miller (1 hour) b. ms. winnecuit (5 minutes) c. mr. drudge (30 minutes) d. mrs. french (15 minutes)

The correct answer is "B".

Regarding commercial practices, it is always more important to keep the focus on the more important calls, as they could represent more economic benefits to the company. However, if all of the calls are equally important, the second factor that has to be taken into account is the expected length which the calls to clients could take. It is better to increase the probability that the majority of the issues with clients are attended by attending the ones that will take less time first.

the correct answer is "c: merchants" and "e. soldiers".

the song dynasty was known as the first government in the world to introduce paper currency. it was also the first chinese government which established a permanent standing navy. finally, the first compass was introduced during this period of government.

all of these innovations heavily affected commerce in a positive way. printed money dynamize commerce within the borders of the empire due to an easier way to quantify value during the trade. the introduction of the compass trade routes to be faster. finally, the introduction of a standing navy regulate trade routes.

regarding military affairs, gunpowder was created during this period. this was a tremendous improvement that was widely utilized by the military in order to innovate in the manufacturing of weapons.