Suppose that you implement a queue using a null-terminated singly-linked list, maintaining a reference to the item least recently added (the front of the list) but not maintaining a reference to the item most recently added (the end of the list). What are the worst case running times for enqueue and dequeue?
constant time for both enqueue and dequeue
constant time for enqueue and linear time for dequeue
linear time for enqueue and constant time for dequeue
linear time for both enqueue and dequeue

True or false: on january 1, year one, the epstein corporation buys a plot of land with a four-story office building. the company believes the building is worth $1.9 million and has an estimated life of twenty years (with no anticipated residual value). the straight-line method is used. the land has an assessed value of $100,000. because the seller was interested in a quick sale, epstein was able to buy this land and building for $1.7 million. depreciation expense to be recognized in year one is $80,750.

4. suppose that pollution in a neighborhood comes from two factories, with marginal benefit curves given by mb1 = 12 – p1 and mb2 = 8 – p2. the level of pollution in the neighborhood is given by p = p1 + p2. the government wants to limit pollution by instituting a pollution-rights market. the government’s desired level of p is 10, so it prints 10 pollution rights and offers them for sale to the firms.a)find the equilibrium selling price of a pollution right, as well as the allocation of rights (and hence pollution levels) across the two factories. b)repeat part (a) for the case where the government’s desired level of pollution equals 14. c)comment on the usefulness of a pollution rights market in achieving efficient levels of pollution abatement.

Marco works in the marketing department of a luxury fashion brand. he is making a presentation on the success of a recent marketing campaign that included a fashion show. which slide elements can he use to include photographs and footage of the fashion show in his presentation? marco can use the: table images audio option to include photographs and the: flowcharts images video option to include footage of the fashion show.