Hi, please list out the formulas where necessary , graphs where necessary , if the question doesnt require it, its fine not have it but please do put it down if it helps you to explain .explain it and list out the formulas used with explanations of formulas,themeaning of the symbols. Please dont provide a poor answerThank you!

1. (a)In 1820, per capita income was pretty similar in Jamaica, Brazil and Japan - it was about 700 per person per year. By 2010, per capita income had risen to about 3600 in Jamaica, 7 000 in Brazil and 22 000 in Japan. What was the average growth rate in each country over the time period?
2. (b)In 1870, Italy had roughly twice the GDP per capita of Hong Kong (1500 vs. 700). But by 2010, the positions had almost totally reversed - Hong Kong was about 50% wealthier than Italy (30 000 vs. 19 000). What was the average growth rate in each country over the time period?