Not sure how simplified you need it...
8ab-3b+8
Answer:

Step-by-step explanation:
Hello, please find below my work.


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The probability that none of the shoes are black is 51.2%.
If 20% of the shoes are black, then 80% of the shoes are not black. To find the probability that three shoes are not black, we have to multiply 80% by itself 3 times.
0.8 x 0.8 x 0.8 = 0.512 = 51.2%