The exponential models below describe the population of the indicated country, a, in millions, t years after 2010. russia - a=141.9e –0.005t japan - a=127.3e –0.006t iraq - a=31.5e 0.019t india - a=1173.1e 0.008t a. what was the population of japan in 2010? b. what was the population of iraq in 2010? c. which country has the greatest growth rate? by what percentage is the population of that country increasing each year? d. which countries have a decreasing population? by what percentage is the population of these countries decreasing each year? e. when will india's population be 1,377 million? f. when will india's population be 1,491 million?