Answer:
162 beats per minute.
Step-by-step explanation:
Normal target heart rate is between 64% to 76% of maximum heart rate for a moderate-intensity physical activity while it is between 77% to 93% of maximum heart rate for a vigorous-intensity physical activity. The maximum heart rate in beats per minute is given by:
maximum heart rate = 220 - age
Given Nic is 18 years, his maximum heart rate is:
Maximum heart rate = 220 - 18 = 202 beats per minute.
Nic target heart rate is 80 percent of his maximum heart rate, hence:
Target heart rate = 80% * 202 = 162 beats per minute.