AA:黄金八十题原题: The following appeared as part of an article in a magazine devoted to regional life. “Corporations should look to the city of Helios when seeking new business opportunities or a new location. Even in the recent recession, Helios’s unemployment rate was lower than the regional average. It is the industrial center of the region, and historically it has provided more than its share of the region’s manufacturing jobs. In addition, Helios is attempting to expand its economic base by attracting companies that focus on research and development of innovative technologies.
MATH 1. mark, Vivian, katie3个人玩牌，每个人刚好轮一次算一轮，求能不能算出katie轮到的次数与每个人total轮到的次数相加起来的比值。 (1)MARK是第一个也是最后一个轮到的 (2)katie轮到17次。 2. 一个acre等于48XX个yard，一个什么的长度r=5.5个yard，一个F的长度又等于40个r吧，问F的平方面绩差不多等于多少个acre(比较特别的是信息给的是面积和长度)，答案有0.1，1，和10等。