A = 21/2 i will write something too just to fill up the space
Answer:
give a picture
Step-by-step explanation:
The probability of picking a black ball first is

, because there are 4 black balls and 1 white ball which is 5 balls in total. After picking the first ball, 4 balls remain - 3 black and 1 white, so the probability of picking a white ball is

.
So, the probability of picking a black ball first followed by a white ball is
What are you looking for?
I may be wrong but I think it would be D, Since (even with the rounded edges) theres only 4 defined sides.