Which of the following is not a trade barrier? Group of answer choices

Russell's is considering purchasing $697,400 of equipment for a four-year project. the equipment falls in the five-year macrs class with annual percentages of .2, .32, .192, .1152, .1152, and .0576 for years 1 to 6, respectively. at the end of the project the equipment can be sold for an estimated $135,000. the required return is 13.2 percent and the tax rate is 23 percent. what is the amount of the aftertax salvage value of the equipment assuming no bonus depreciation is taken

Describe what fixed costs and marginal costs mean to a company.

Asupermarket has been experiencing long lines during peak periods of the day. the problem is noticeably worse on certain days of the week, and the peak periods are sometimes different according to the day of the week. there are usually enough workers on the job to open all cash registers. the problem is knowing when to call some of the workers stocking shelves up to the front to work the checkout counters. how might decision models the supermarket? what data would be needed to develop these models?