Answer:
29%
Step-by-step explanation:
the original air is present after 240 breaths 0000000060 2 ML of the original air is present so after like 240 breaths you can have 400 mg of ibuprofen. Each hour, the amount of ibuprofen in the person's system decreases by about 29%.
hope this helps have a nice day ,please mark brainliest!!!!!!!!!!
