Depends if they have hit a growth spurt, and what age they are. I'm 13 and i grew about half an inch in 3-4 months.
on average 1 inch
On average, less than 1.
Personally I grew 4 inches in one mint but the average is probably .5 to 1.5
It can grow 12 to 18 inches
It is how many inches you grow, there is no exact nunber!
7 to 8 inches
2 inches
2.5 inches
On average, human hair grows approximately 1/2 inch per month leading to 6 inches per year.
18-22 inches
we have a Maltese dog and he is about 10 inches tall
it is about 15 inches or above,,