There are 11 different pizza toppings, and Arturo must rank his top 4 in order.

label Mathematics
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schedule 1 Day
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Jun 21st, 2015

Thank you for the opportunity to help you with your question!

we can find the different choices as fallows

11 C 4

=11!/(7!)4!

=11*10*9*8*7!/7!*4*3*2*1

=330


so the number of choices are 330

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 21st, 2015

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