220-your age
so subtract 220 from how old you are.
It's called the target heart rate
In order to have an effective workout, Most of health experts recommend that we target our average heart rate from 55 % to 85% of our maximum heart rate for at least 20 - 30 minutes
It will greatly lower the risk of heart disease and increase metabolism
Running on the tredmil to work on his cardio
I believe it is either A or D. I really am not sure. I am leaning more towards D though.
Ollie desires to enroll or sign up his kids to an online social network referred to as TeensMeet where some other kids also have joined. In order to stay safe the information that Ollie should be giving are the his first name or nickname and his favorite music. This is choice B. That is so in order to keep discrete his personal information and never allow any social network to take hold of any personal information
