aaron works at a middle school. he provides help and support to a senior school administrator. he foucses on individual aspects of adonistration. For example, he keeps track of thr students’ attendance. he prepares schdules for the school’s buses. He also has the responsibilty of maintinf the school’s playground. Which type of education administrator is he?

Amathematical approximation called the rule of 70 tells us that the number of years that it will take something that is growing to double in size is approximately equal to the number 70 divided by its percentage rate of growth. thus, if mexico's real gdp per person is growing at 7 percent per year, it will take about 10 years(=70/7) to double. apply the rule of 70 to solve the following problem. real gdp per person in mexico in 2005 was about $11,000 per person, while it was about $44,000 per person in the u.s. if real gdp per person in mexico grows at the rate of 5 percent per year: how long will it take mexico's real gdp per person to reach the level that the united states was at in 2005? (hint: how many times would mexico's 2005 real gdp per person have to double to reach the u.s.'s 2005 real gdp per person?

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Acoase solution to a problem of externality ensures that a socially efficient outcome is to