Aperson who is 15 years old had a target heart rate range of

I believe it would be your resting pulse rate subtracted from 205.So, Figure out your pulse rate by counting how many beats for 10 seconds, then multiply it by 6. Subtract that amount from 205. Example : Pulse rate - Beats 10 times in 10 seconds. Multiply 10 x 6 = 60. 205-60 = 145 

Between 70 and 100 bpm

This gel or liquid can be placed under the tongue of an unconscious person. this is important because you should never pour anything down the throat of an unconscious person-- s/he could choke.