Help, this looks simple yet I am confused.
Sarah, who is 15 years old, is performing a step challenge to strengthen her cardio-respiratory endurance. She commences by timing her resting heart rate for 6 seconds, then adds a 0 to the end of the number of heartbeats she counts . Sarah then after times her exercise heart rate for 6 seconds, then adds a 0 to the end of the number of heartbeats she counts, after she completes her 3-minute step challenge. She then rests for 1 minutes and after that minute she times her recovery heart rate for six seconds, then adds a 0 to the end of the number of heartbeats she counts. What are Sarah's heart rates throughout her resting, exercise, and recovery heart rate?
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Example: His resting heart rate is 7 beats throughout 6 seconds, add a 0 to the 7, which makes her resting heart rate 70.
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Questions:
Resting Heart Rate: __
Exercise Heart Rate:__
Recovery Heart Rate:__
please help