In which system of government do the people have the most political power

From 1990 to 2008, by what percent did the world’s most developed economies cut their greenhouse gas emissions?

List a few examples of city-states that practiced oligarchy in ancient greece

The current population of a city can be represented by "p." the population is expected to increase by 6.5% next year. write an expression in simplest form that represents the expected population next year.