1 hour
8-9 hours
I imagine about close half or over.
8 to 10 hours
10 to 11 year old girls need 8 full hours of sleep.
A teen could benefit from exercise by strengthening muscle tone.
No as long as they eat healthy food and exercise regularly.
It doesnt matter what gender. But for a teen they should get at least 8 hours of sleep. Most get about five ir less.
A teen can study their book as much as they want .
8-9 hours
900 of them.
About 9-10 hours.
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