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Hai, Brainiac!

Great question!

Basically to find the answer, first you add the number of each marble there is.

5 black marbles + 9 white marbles + 2 red marbles = 16 marbles altogether.

Red marbles to the total number of marbles altogether is 2:16, a ratio.

Simplified, that would be 1:8 marbles, or, answer choice B, so your answer would be 1/8 :D

Hope this helps!
Message me bestie if you need anything else! :D

Hi there! :) I believe the answer is B: 1/8. The reason I picked 1/8 is because you add all the numbers together, so since we have 5,9, and 2 ; 5+2+9=16.
 So since it says what is the probability that the marble will red. There are 2 red marbles so it would 2/16 but there is NO 2/16 so we simplify. 2/2=1 and 16/2= 8 So your answer is 1/8! Hope I helped :) :D  Have a amazing day! ;)

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