the spinner is spun once. What is the probability of P(3,6,or 8) write the answer as a percent

Probability of having any given number is 1/9 (one from 9 outcomes)

Now, the Probability of having 3, 6, or 8 is adding the probabilities of all three, that is:

P(3, 6, 8) = P(3) + P(6) + P(8)

Can you do it now?