It depends on the weather, diet, exercise, sleep, etc.
It should grow about a quarter to half an inch per month.
Your body controls the hormones that grow breasts.
nine to ten inches
No, they do not. Only girls and women have it. The uterus is the place inside the woman where the baby will grow for nine months, before it is delivered. Men and boys do not need a uterus, because they do not give birth to a baby.
They are boys
Well oddly enough hitler didn't have a temper at all. He had self esteem slightly lowered when sombody would compliment his hair and then say it could actually use a little work. From this experience occurin quite often he would shout "nine nine nine nine". Then he would stare in aww at how beautiful the Jewsish boys hair was from down the road and get quite jelious
very fast
At least half are boys because all of them are boys.
Nine boys and girls.
No, at that age you really shouldn't even talk to boys on the the phone. Especially older boys. So no, nine is not the appropriate age to be talking to older boys on the phone.
cultivate?
As fast as the Raikage.
If ALL of them are boys, then HALF of them are also boys.