Respuesta :

tourmaline

(5 * 4)/(2 * 1) = 20/2 = (( 10 or A ))

kenaf

Answer:

10 is the answer

Step-by-step explanation:

C(5,2) = 5! / 2! (5-2)!

C(5,2) = 5! / 2!3!

C(5,2) = 120/12

C(5,2) = 10

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