3 times in a row (for example in 1 week) or total of 3 times with some time between (1-2 weeks , mounts)? For urine and blood testing , allot depend on your body fat range , metabolic rate, physical activity, etc.. I'll say 1-3 weeks (for 3 in a row) and 3-7 days (for time between) better run a home drug test and if you pass using your first morning urine (with the highest concentration) you are good. For saliva testing - 1-4 days . Hair testing - 90 days
If you smoked a joint once, it will take a few hours and after that you will be fine.
For a month. The amount you smoked doesn't change the fact it is there.
a week or less
it stays in your system for 2 to 3 months, depending how much you smoked.
over 9000 years!
That depends on how much you've smoked and for how long. If you smoked a couple of times a week you would expect it to be out of your system within a month.
couple of days
The active ingredient in marijuana, THC, can be detected in urine for up to 30 days after heavy use. However, individual factors like metabolism and body fat percentage can affect how long it stays in your system. As a rough estimate, it may take several weeks to a couple of months for THC to be completely eliminated.
That would depend on many factors - how much you smoked, your metabolism, body weight, activity level, etc. See the Drug Detection Times link.
28 days
If you smoked a joint once, it will take a few hours and after that you will be fine.
For a month. The amount you smoked doesn't change the fact it is there.
Roughly 30 days from the last time you have smoked.
Long enough to make you forget how to spell some of the shortest words in the English language. (In this case, "it" and "stay")
if you are just worried about how long that will stay in your system then you have some problems. I'd worry about the actual crack smoking part! Why would you even smoke crack?
3 days
a week or less