(5ab-7a-9) - (8ab-2)
5ab - 7a - 9 - 8ab + 2
-3ab -7a -7
Judging on the question I realized to find the probability of finding a white paperclip would be a fraction.
The numerator of the fraction should be (9) white paperclips. The denominator of the fraction should be (20) the TOTAL amount of paperclips (white+green+red).
The fraction should be 9/20. or 45%
100 person had a food provision for 24 days if 20 person left the place the provision will last for 30 days
