contestada

In how many ways can you arrange eight books on a shelf? A. 20,160 B. 5,040 C. 36 D. 40,320

Respuesta :

D is the answer  8*7*6*5*4*3*2*1 = 40320 
D. is because 8 = 8*7*6*5*4*3*2*1 = 40320 
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