San francisco airport (sfo) is an independent entity that charges airlines landing fees for the right to use their airport. let the landing fee charged by sfo be w and let demand for flights on united, the dominant airline at sfo, be q(p) = 800 − p. for this question, assume united is a monopolist airline at sfo and has no other marginal costs besides landing fees at sfo.

(a) what is united’s profit function?

(b) what price will united set for its flights out of sfo and how does it depend on w? what is the quantity of flights sold by united, and how does it depend on w?

(c) what landing fee, w, will sfo set? what are its profits? what are united’s profits?

(d) suppose the department of justice allowed sfo airport and united to merge. what happens to consumer surplus? what happens to the combined profits of sfo and united? what is the reason for those changes?

Which themes are portrayed in this excerpt from leo tolstoy’s the death of ivan ilyich? praskovya fedorovna came of a good family, was not bad looking, and had some little property. ivan ilyich might have aspired to a more brilliant match, but even this was good. he had his salary, and she, he hoped, would have an equal income. she was well connected, and was a sweet, pretty, and thoroughly correct young woman. to say that ivan ilyich married because he fell in love with praskovya fedorovna and found that she sympathized with his views of life would be as incorrect as to say that he married because his social circle approved of the match. he was swayed by both these considerations: the marriage gave him personal satisfaction, and at the same time it was considered the right thing by the most highly placed of his associates. so ivan ilyich got married. conforming to social conventions criticism of a middle class lifestyle the destructive impact of loneliness struggling to face reality the necessity of companionship

Find the area of a parallelogram with the given vertices. p(-2, -5), q(9, -5), r(1, 5), s(12, 5)

In an improper fraction, is the numerator equal to, less than, or greater than the denominator