Answer:
<u>⚪</u><u> </u><u>(</u><u>4</u><u> </u><u>•</u><u> </u><u>3</u><u>)</u><u> </u><u>+</u><u> </u><u>(</u><u>4</u><u> </u><u>•</u><u> </u><u>8</u><u>)</u>
Step-by-step explanation:

by distributing 4 in the bracket:

{0,3,5,8} ok this0 is the an0sw0er
Answer: P(not shaded sector) = 0.50
Step-by-step explanation:
Since we have given that
Number of shaded parts = 6
Number of unshaded parts = 6
Total parts = 6+6 = 12
So, Probability of getting not shaded sector is given by

Hence, P(not shaded sector) = 0.50
I think the third one on both part a and b can't be used to find the answer