The population in Cuba is expected to grow at a rate of 4% each year . Now is
1.3million .
This means that after 1 year the population in Cuba would be: 1.3 million+ 4%*1.3million=1.300.000+52.000=1.352.000
After the second year the population would be: 1.352.000 + 4% of 1.352.000=...
After n years the population would be: population in the n-1 th year + 4% (population in the year n-1)
In 10 years the population in Cuba would be: population in the 9-th year +4% from the population in the 9-th year