Answer: The patient receives
daily.
The prescription will last 30 days .
Explanation:
Given : Prescription= Two sprays into each nostril once daily.
That means total sprays for both nostrils =
[∵ 1 nostrils in each nose.]
If each spray contains
of drug, then the amount of drug received by patient daily :-

Thus , the patient receives
daily.
Also, the container can deliver a total of 120 sprays.
Then, the number of days of use will the prescription last the patient will be:_

Hence, the prescription will last 30 days of use .