To warm up before a run, lucas walks for five minutes. which of these accurately evaluates his choice of warm-up activity? a. this activity is appropriate because it prepares muscles for more intense movement. b. this activity is not appropriate because the muscles stretched are not warm yet. c. this activity is appropriate because it makes the leg muscles more flexible. d. this activity is not appropriate because it stretches muscles not used in the exercise.

that is tough

explanation:

when in a crucial situation, after calling 911, the correct posture for delivering effective compression is the proper hand placement.

first, place two fingers at the sternum, then put the heel of your other hand next to the fingers and place hand on top of the other. lock your elbows by using your body’s weight and compress the victim’s chest with a depth of 2 inches.

moreover, do 15 compression and 2 breaths, this process must be done four times until there is a pulse or a arrive.