Well if three of them end up with the same lunch box and there are only 4 total lunch boxes, then that means all of them would get their original lunchbox.
For that to happen there is a 1/4 chance for each person to correctly pick their lunchboxes.
So it’s 1/4*1/4*1/4*1/4 and that equals to 1/256.
So there is a 1/256 chance that they will end up with their original lunch box.
Hope this helps!
Answer:

Step-by-step explanation:
The formula of a slope:

We have the points (1, -1) and (6, 2).
Substitute:

Answer:
665,800
Step-by-step explanation:
315,800+1,225,000=1,540,800
1,540,800-875,000=665,800
Answer:
98-40sqrt6
I used a calculator after trying to foil