Answer:
It's an example of proofreading I think
Answer:
Ping pong, or table tennis, is played on a 5' by 9' surface.
Explanation:
D)difficulty staying awake is normal seeing
Answer:
The answer is age.
Explanation:
So for a 50-year-old, maximum heart rate is 220 minus 50, or 170 beats per minute.At a 50 percent exertion level, your target would be 50 percent of that maximum, or 85 beats per minute.
