I believe the correct answer is C.
Answer:
252
Step-by-step explanation:
The order of the books isn't important, so we'll use combinations.
The number of ways to choose 5 books from 10 is:
₁₀C₅ = 10! / (5! (10 − 5)!)
₁₀C₅ = 10! / (5! 5!)
₁₀C₅ = 10×9×8×7×6 / (5×4×3×2×1)
₁₀C₅ = 252
Answer:

Step-by-step explanation:
<u>Given:</u>

<u>Substitute:</u>
into 

<u>Swap the sides:</u>
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<u>Divide both sides of the equation by the coefficient of variable:</u>
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<u>Cross out the common factor:</u>
<u />
<u>Find the equation of the function:</u>
<u />
<u>Substitute:</u>
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<u>Calculate the product or quotient:</u>
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