Question

what is the no. of breathing per min called ​

Answer 1

Answer:

Respiratory rate: A person's respiratory rate is the number of breaths you take per minute. The normal respiration rate for an adult at rest is 12 to 20 breaths per minute.

Answer 2

Explanation:

(−8×9)+(−8×7)=(−72)+(−56)=−72−56=−128

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