please help me with this

Answer:
66 beats per minute.
Explanation:
The resting heart rate occurs after and before the exercise, it is when the students body rests after the period of exercise
Answer:
About 65 heart beats per minute
Explanation:
Student B's line started at 65 (before exercise) then during it rose to about 98 which would be their working heart rate. The rate that it started and ended at is the resting rate. therefore 65 is the answer :) hope that helped