This worksheet requires students to:
1. Calculate approximate real income per person in the United States over the past 60 years.
2. Compare the growth rate of real GDP over a period to the growth rate of real GDP per capita to understand how changes in a country's population affect living standard over time.
3. Use the rule of 70 to estimate the amount of time it will take for a country's standard of living to double (assuming constant growth in RGDP/capita).