The imposition of an integer restriction is necessary for models where a. variables can take negative values. b. the decision variables cannot take fractional values. c. nonnegativity constraints are needed. d. possible values of variables are restricted to particular intervals.

Your aunt is thinking about opening a hardware store. she estimates that it would cost $300,000 per year to rent the location and buy the stock. in addition, she would have to quit her $45,000 per year job as an accountant. a. define opportunity cost. b. what is your aunt's opportunity cost of running a hardware store for a year? if your aunt thought she could sell $350,000 worth of merchandise in a year, should she open the store? explain.

The digby's workforce complement will grow by 20% (rounded to the nearest person) next year. ignoring downsizing from automating, what would their total recruiting cost be? assume digby spends the same amount extra above the $1,000 recruiting base as they did last year. select: 1 $2,840,000 $3,408,000 $570,000 $475,000

Steele bicycle manufacturing company currently produces the handlebars used in manufacturing its bicycles, which are high-quality racing bikes with limited sales. steele produces and sells only 10,000 bikes each year. due to the low volume of activity, steele is unable to obtain the economies of scale that larger producers achieve. for example, steele could buy the handlebars for $31 each: they cost $34 each to make. the following is a detailed breakdown of current production costs: after seeing these figures, steele's president remarked that it would be foolish for the company to continue to produce the handlebars at $34 each when it can buy them for $31 each. calculate the total relevant cost. do you agree with the president's conclusion?