The age of Earth is about 4.6×109

years old. What is the number in decimal notation?(1 point)
Responses

4.6000000000
4 point 6 0 0 0 0 0 0 0 0 0

46,000,000,000
46 comma 000 comma 000 comma 000

4,600,000,000
4 comma 600 comma 000 comma 000

0.0000000046

1 answer

The age of Earth, which is approximately \( 4.6 \times 10^9 \) years, is expressed in decimal notation as:

4,600,000,000

So, the correct response is:

4,600,000,000