What is not working properly... please reword and I'll be happy to help . Each answer is specific that is ehh I am answering to make sure you get the correct answer
Answer:
Target Heart Rate
Explanation:
Target heart rate is generally expressed as a percentage (usually between 50 percent and 85 percent) of your maximum safe heart rate. The maximum rate is based on your age, as subtracted from 220. So for a 50-year-old, maximum heart rate is 220 minus 50, or 170 beats per minute.
1 is A
2 is C
3 is True
4 is D
If they are wrong correct me pls