The table below shows the population of the three countries in 2011.
Country United States Canada Mexico
Population 3.1 × 10^8 3.38 × 10^7 1.2 × 10^8
What was the combined population of the United States and Mexico in 2011?
Responses
A 3.72 × 10^16
B 3.438 × 10^8
C 10.478 × 10^8
D 4.3 × 10^8
The combined population of the United States and Mexico in 2011 would be:
3.1 x 10^8 + 1.2 x 10^8 = 4.3 x 10^8
Therefore, the answer is D) 4.3 x 10^8.