Which of the following criteria would make gold a poor medium of exchange? A. value relative to its weight so that amounts large enough to be useful in trade can be easily transported B. divisibility because different goods are valued differently C. durability so that value is not lost by spoilage D. a supply that would be difficult to control because of the unpredictability of new gold discoveries

Sales at a fast-food restaurant average $6,000 per day. the restaurant decided to introduce an advertising campaign to increase daily sales. to determine the effectiveness of the advertising campaign, a sample of 49 days of sales were taken. they found that the average daily sales were $6,300 per day. from past history, the restaurant knew that its population standard deviation is about $1,000. if the level of significance is 0.01, have sales increased as a result of the advertising campaign? multiple choicea)fail to reject the null hypothesis.b)reject the null hypothesis and conclude the mean is higher than $6,000 per day.c)reject the null hypothesis and conclude the mean is lower than $6,000 per day.d)reject the null hypothesis and conclude that the mean is equal to $6,000 per day.expert answer

Aproduct has a demand of 4000 units per year. ordering cost is $20, and holding cost is $4 per unit per year. the cost-minimizing solution for this product is to order: ? a. 200 units per order. b. all 4000 units at one time. c. every 20 days. d. 10 times per year. e. none of the above

On january 1 of the current year, jimmy's sandwich company reported owner's capital totaling $128,000. during the current year, total revenues were $106,000 while total expenses were $95,500. also, during the current year jimmy withdrew $30,000 from the company. no other changes in equity occurred during the year. if, on december 31 of the current year, total assets are $206,000, the change in owner's capital during the year was: