The is defined as the player waiting for the ball to come over the net from a serve. (tennis)

omg nvm i got it wrong

Explanation:

i don't know whether or not if this is for volleyball or another sport

b.working on a weight lost for a patient

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.