Final answer:
To calculate the number of years, divide the given seconds by the number of seconds in a day, and then divide the result by the number of days in a year. In this case, 2.00 billion seconds is approximately equal to 63.4 years.
Step-by-step explanation:
To calculate the number of years, we need to convert the given number of seconds into days and then into years.
There are 86400 seconds in a day (24 hours x 60 minutes x 60 seconds).
So, 2.00 billion seconds is equal to 2.00 x 10^9 seconds divided by 86400 seconds per day, which is approximately 23148 days.
Next, we divide the number of days by 365 (the number of days in a year) to get the number of years: 23148 days / 365 = approximately 63.4 years.