The brother-sister pair Carlos and Clarita need your class's help in developing their new pet sitting business. Through a variety of scenarios and concerns presented to the siblings, the learners thoroughly explore systems of equations...

GDP per capita is GDP (Gross National Product) divided by population. Since GDP is measured in a country's currency, in order to compare different countries' GDPs, we need to convert them to a common currency. One way to compare...

By the end of this section, you will be able to explain how GDP can be used to compare the economic welfare of different nations, calculate the conversion of GDP to a common currency by using exchange rates, and calculate GDP per capita...