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can anyone assist me with this please and thank you
Alicia has 10 paintings she wants to hang side by side on her wall.
(a) In how many ways can she arrange all 10 paintings? Show your work.

(b) If she only wants to display 3 of the paintings, in how many ways can she choose the paintings she wishes to display? Show your work.

(c) In how many ways can she arrange 6 out of the 10 paintings? Show your work.

Respuesta :

a) 7! = 7*6*5*4*3*2*1 = 5040 different ways  

b) 7C4 = 7! / (4!3!) = (7*6*5) / (3*2*1) = 35 ways

c) See above 4*3*2*1 = 24 ways

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