A city's population is 5 million this year the population grows by 4% each year what will the population be after two years?
The population after two years will be 5408000.
The city's population is 5000000. 4% is the same as 0.04, so multiply 5000000 by 0.04 and add it to 5000000.
This is the population after one year. Repeat the process again to get the population after two years.