He discount hair center has a large container of combs. each purchase qualifies a customer to receive a free comb. the container contains 4 blue combs, 2 purple combs, 8 black combs, 3 white combs, 6 yellow combs, and 5 pink combs. what is the probability that the next customer will pull out a blue comb?

It would be a 4 in 28 probability (or 1 in 7 if you simplify)
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first you add up all the number of combs together which gives you 28 combs total

the there were 4 blue combs out of the 28

so the probability it 4 in 28       or 1 in 7