Thế giới di dộng đang ấp ủ nhiều chiến lược kinh doanh với những mô hình hoàn toàn mới nào.

Which of the following best explains why online retail companies have an advantage over regular stores? a. their employees make less money because they mostly perform unskilled tasks. b. they are able to keep distribution costs low by negotiating deals with shipping companies. c. their transactions require expensive state-of-the-art technological devices. d. they have a larger number of potential customers because people anywhere can buy from them.

Your sister turned 35 today, and she is planning to save $60,000 per year for retirement, with the first deposit to be made one year from today. she will invest in a mutual fund that's expected to provide a return of 7.5% per year. she plans to retire 30 years from today, when she turns 65, and she expects to live for 25 years after retirement, to age 90. under these assumptions, how much can she spend each year after she retires? her first withdrawal will be made at the end of her first retirement year.

Customers arrive at rich dunn's styling shop at a rate of 3 per hour, distributed in a poisson fashion. rich can perform an average of 5 haircuts per hour, according to a negative exponential distribution.a) the average number of customers waiting for haircuts= customersb) the average number of customers in the shop= customersc) the average time a customer waits until it is his or her turn= minutesd) the average time a customer spends in the shop= minutese) the percentage of time that rich is busy= percent