Well not too sure but the diference is 8 and 60 is nearly half of 100 so I would say around 15
Answer:
To find your heart rate you would, D. 220 - your age
Step-by-step explanation:
You can calculate your maximum heart rate by subtracting your age from 220. For example, if you're 45 years old, subtract 45 from 220 to get a maximum heart rate of 175. This is the average maximum number of times your heart should beat per minute during exercise
It will take 14 minutes and 8 seconds