Answer:
Subtract your heart's resting rate from your maximum rate. For example, if you are 40 years old, subtract that number from 220; your maximum rate is 180. Next, subtract your resting rate or 80 in this example. Your heart-rate reserve is 100 beats per minute.
The comma attempts to join 2 independent clauses. B
A. A common characteristic of a fad diet is that it claims to: help with easy weight loss.
