Answer:
Italy and Spain are the countries with the most developed economies in 2009.
Explanation:
Spain is one of the countries that has among the most developed economies, and this can be seen in the high GDP and high GDP per capita.
Brazil doesn't have a highly developed economy, despite the high GDP which is almost on the same level as Spain, the GDP per capita is much lower, and that is due to the much larger population it has.
Pakistan doesn't have a highly developed economy because its GDP is not very high, while the GDP per capita is very low.
Algeria doesn't have a highly developed economy because its GDP is not very high, while its GDP per capita is low.
Italy is a country that has a highly developed economy and this can be seen in the fact that both its GDP and GDP per capita are high.