Using it's concept, it is found that the probability of a person being over 20 years old and preferring strawberry ice cream is of 12%.
<h3>What is a probability?</h3>
A probability is given by the <u>number of desired outcomes divided by the number of total outcomes.</u>
In this problem, there are 8 + 10 + 6 + 8 + 6 + 12 = 50 people, and of those, 6 are over 20 years old and prefer strawberry ice cream, hence the probability is given by:
p = 6/50 = 0.12 = 12%.
More can be learned about probabilities at brainly.com/question/14398287
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I’m not sure if the 15 is the question number but if it is the answer is 32. use PEMDAS

“Nerves that extend throughout the body on both sides emerging directly from brain and brain stem are called cranial nerves.”
Division and subtraction because the quotient is the result of a division and 'less than is a subtraction.