The table below shows the population of the three countries in 2011.

Question

Country United States Canada Mexico
Population 3.1 × 108 3.38 × 107 1.2 × 108

What was the combined population of the United States and Mexico in 2011?
Responses
A 3.72 × 10163.72 × 10 16
B 3.438 × 1083.438 × 10 8
C 10.478 × 10810.478 × 10 8
D 4.3 × 108

Answer 1

The combined population of the United States and Mexico in 2011 is:
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.