If a city of 10,000 experiences 60 births, 35 deaths, 40 immigrants and 25 emigrants in a single year, what is the city's population growth rate?

10,000 + 60 - 35 + 40 - 25 = 10,040

40/10,000 = 0.004 = 0.4$ growth rage

0.4%

To determine the city's population growth rate, we need to calculate the net population change first. The net population change is the difference between the number of births and deaths, plus the difference between the number of immigrants and emigrants.

1. Calculate the net population change:
Net population change = (Births - Deaths) + (Immigrants - Emigrants)
Net population change = (60 - 35) + (40 - 25)
Net population change = 25 + 15
Net population change = 40

2. Calculate the population growth rate:
Population growth rate = (Net population change / Initial population) * 100
Population growth rate = (40 / 10000) * 100
Population growth rate = 0.4%

Therefore, the city's population growth rate is 0.4%.