Final answer:
The population of Mexico was 115 million and grew at a rate of 1% annually, while the population of the US was 314 million and grew at a rate of 0.9% annually.
Step-by-step explanation:
According to the given information, in 2012, the population of Mexico was 115 million and growing at a rate of 1% annually, while the population of the US was 314 million and growing at a rate of 0.9% annually.
To calculate the growth in population for each country, we can multiply the population by the growth rate. For Mexico, the growth would be 115 million * 0.01 = 1.15 million. For the US, the growth would be 314 million * 0.009 = 2.826 million.
Therefore, the population of Mexico would increase by 1.15 million annually, while the population of the US would increase by 2.826 million annually.