Answer:
a
Step-by-step explanation:
hi huh sks s snow sns 20 vah
The only time you can be so certain that you have picked 2
brown socks is when there are no more white socks and black socks. This means
that to be 100% sure that you have picked 2 brown socks, you must pick all 12
white socks and all 18 black socks and only then you can pick 2 brown socks
without looking. Therefore the total number of socks that should be picked is:
Total number of socks = 12 white socks + 18 black socks + 2
brown socks
Total number of socks = 32 socks
A total picking of 32 socks is required to be certain
without looking that 2 brown have already been chosen.
Answer:
X=8
Step-by-step explanation:

The solutions would be like this for this specific problem. Please refer to the attachment below.
I am hoping that these answers have satisfied your queries and it will be able to help you in your endeavors, and if you would like, feel free to ask another question.
The lowest must be ,,,,,when x=0
so
10y+30=0
10y=-30
y=-3
So your answer is (0, -3)