Answer:
1380
Explanation:
You want to know the population of a 23 km² region that has a population density of 60 persons per square km.
Population density
The density is given as the ratio of people to area:
density = population/area
60 people/km² = population/(23 km²)
Multiplying by the denominator will tell us the population:
population = (23 km²)(60 people/km²) = 23·60 people = 1380 people
The population of the region is 1380 people.