Question

The population of Asia is approximately 4.5 x 10^9. If the population of Earth is about double that of Asia, what is the approximate population of Earth?

Answer 1

9x10^9

Explanation:

2x4.5x10^9

just multiply by two.

Answer 2

2,000,000,009

Explanation:

2(4.5 x 10^9)

Distribute the 2

(2 x 4.5) +2(10^9)

= 9 + 2,000,000,000