On average, how long does a persistent cough last after one recovers from pertussis?

for 8 am not sure maybe yes?

for 9 if it is asking if the male is more or less it would be less

hope i even just a little : )

carbon atoms, hydrogen, oxygen, and nitrogen.

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?

the answer is c a tornado