You usually start off with twenty baby teeth. If she is losing four each year you would divide the amount of baby teeth by four:
20/4=5
So she lost all her teeth by Five years of age.
PS. which is quite young!
3,500 calories = 1 pound, so 3,500 would be the answer.
Answer:
Subtract your age from 220 to get your maximum heart rate. Calculate your resting heart rate by counting how many times your heart beats per minute when you are at rest, such as first thing in the morning.
