A 9 year old will have lived through at least 2 leap years, so allowing for that, they will have been alive for 283,996,800 seconds. It is possible they have lived through 3 leap years in which case they will have been alive for 284,083,200 seconds.
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The same, I was the one who posted this question, I just like putting something about us 12 year old boys. So they have the same amount of bones
1 minute 45 seconds OR 105 seconds OR 105,000 miliseconds OR 105,000,000 microseconds OR 1,050,000,000 nanoseconds OR 105,000,000,000,000 picoseconds
very good! :)
No the average is 100 IQ points
The healthy weight range for a 10 year old boy who's 58 inches tall is 68 lbs to 92 lbs. Talk with your health care provider for advice specific to your situation.