Supose the tolal output of a factory changes from 200 to300 units. when the variablle input. changes from 10 to 20 unitse. correspondingly, total variable cost changes from birr 2000to birr 3000, and the fixed cost equals birr 500.
determin,
A. the marginal cost of the producing the extra unit
B. the average cost of prodaction at the initial level
C. the marigal prodact of the variable input (labor)...

When cell phones were first entering the market, they were relatively large and reception was undependable. all cell phones were essentially the same. but as the technology developed, many competitors entered, introducing features unique to their phones. today, cell phones are only a small fraction of the size and weight of their predecessors. consumers can buy cell phones with color screens, cameras, internet access, daily planners, or voice activation (and any combination of these features). the history of the cell phone demonstrates what marketing trend?

Barbara flynn is in charge of maintaining hospital supplies at general hospital. during the past year, the mean lead time demand for bandage bx-5 was 65 (and was normally distributed). furthermore, the standard deviation for bx-5 was 6. ms. flynn would like to maintain a 90% service level.refer to the standard normal table for z-values.a) what safety stock level do you recommend for bx-5? safety stock=)what is the appropriate reorder point? reorder point=

You have just made your first $5,500 contribution to your retirement account. assume you earn a return of 10 percent per year and make no additional contributions. a. what will your account be worth when you retire in 45 years? (do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) b. what if you wait 10 years before contributing?