it depends on how much they eat
they should way 100 lb.
at least your body weight
115-140 pounds
A school backpack should weigh less then 15 % of your body weight.
around 135-150
For a healthy diet, you should weight around 115 lbs if you are a 15 year old female with the height of 5'6.
15 pounds.
52 lbs.
A healthy weight for you is anywhere between 90 and 120 pounds.
at least 15 kilos. 20 better.
My puppy King is 15 weeks and weighs 44 pounds