Answer
Vice President Tyler assumed the presidency after the death of President William Henry Harrison using the implied powers clause of the Constitution, though later the 25th Amendment would state that in the “case of the removal of the president from office or of his death or resignation, the vice president shall become president.”
In the presidential election of 1840, the Whig Party elected Tyler as vice president along with the candidacy of William Henry Harrison. John Tyler took the position of president, after the sudden death of Harrison. This makes him the tenth President of the United States, from 1841 to 1845.
<span>It makes sense that the term “Black Friday” might refer to the single day of the year when retail companies finally go “into the black” (i.e. make a profit). The day after Thanksgiving is, of course, when crowds of turkey-stuffed shoppers descend on stores all over the country to take advantage of the season’s biggest holiday bargains. But the real story behind Black Friday is a bit more complicated—and darker—than that.</span>
That the power in america passed from one party to another
Dry farming was shared by the Navajo and the pueblo
Although opportunity cost is definitely important, it is hard to put a "price" on the opportunity in many cases, which makes it unmeasurable. This is why economists focus almost exclusively on price.
