Answer:
For Australia: 22,044,350
For China: 1,545,744,200
For Mexico: 145,507,500
For Zaire: 92,237,875
Step-by-step explanation:
For Australia: Population in 2000 is 19,169,000 and it is increasing steadily at a rate of 0.6% per year.
Therefore, the population in the year 2025 will be  
![19169000[1+\frac{0.6 \times 25}{100} ]= 22,044,350](https://tex.z-dn.net/?f=19169000%5B1%2B%5Cfrac%7B0.6%20%5Ctimes%2025%7D%7B100%7D%20%5D%3D%2022%2C044%2C350) (Answer)
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For China: Population in 2000 is 1,261,832,000 and it is increasing steadily at a rate of 0.9% per year.
Therefore, the population in the year 2025 will be  
![1261832000[1+\frac{0.9 \times 25}{100} ]= 1,545,744,200](https://tex.z-dn.net/?f=1261832000%5B1%2B%5Cfrac%7B0.9%20%5Ctimes%2025%7D%7B100%7D%20%5D%3D%201%2C545%2C744%2C200) (Answer)
 (Answer)
For Mexico: Population in 2000 is 100,350,000 and it is increasing steadily at a rate of 1.8% per year.
Therefore, the population in the year 2025 will be 
![100350000[1+\frac{1.8 \times 25}{100} ]= 145,507,500](https://tex.z-dn.net/?f=100350000%5B1%2B%5Cfrac%7B1.8%20%5Ctimes%2025%7D%7B100%7D%20%5D%3D%20145%2C507%2C500) (Answer)
 (Answer)
For Zaire: Population in 2000 is 51,965,000 and it is increasing steadily at a rate of 3.1% per year.
Therefore, the population in the year 2025 will be 
![51965000[1+\frac{3.1 \times 25}{100} ]= 92,237,875](https://tex.z-dn.net/?f=51965000%5B1%2B%5Cfrac%7B3.1%20%5Ctimes%2025%7D%7B100%7D%20%5D%3D%2092%2C237%2C875) (Answer)
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