Answer in the document below.
They didn't make it easy. Grid lines are apparently 3 apart, but the offered coordinates are all multiples of 4. It appears the only point that is in the doubly-shaded area is ...
... B (-4, -10)
The distance between those to points is d=6.708204 or d=6
Answer:
The average maximum heart rate for a 20 year old is <u>200 bpm</u>
The target heart rate is <u>100-170 beats per minute (bpm).</u>
I Hope this helps and I hope everything is okay!
6 4/5 + 6 4/5 + 2 2/3 + 2 2/3 = 18 14/15
