The answer is 15 people.
Explanation
You have 45 people and a rate of 33%. 33% is equalivant to 1/3 so you divide 45 by 3 and get 15 people.
The best and most correct answer among the choices provided by the question is the third choice "call 911"
Tachycardia = Too fast. A heart rate of more than 100 beats per minute<span>(BPM) in adults is called tachycardia. What's too fast for you may depend on your age and physical condition.</span>
I hope my answer has come to your help. God bless and have a nice day ahead!
7. walking one mile every day
8. Have you developed healthy and supportive friendships