What would be a measure in determining body composition?

Gregory was caught smoking marijuana on his school’s campus during lunch. this is not the first time gregory has violated the school’s drug-free policy. his principal has decided to expel him, and he may face fines and time in a juvenile detention facility. gregory faced consequences when he was sent to juvenile detention after repeatedly violating the school’s drug-free policy.

Which of the follow is good way to gauge musculature endurance?

Which finger should not be used when measuring heart rate?