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1) 2) How many strings of seven lower case letters of the English alphabet contain exactly four letters w in them? Select all that applies.

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How many strings of seven lower case letters of the English alphabet contain exactly four letters w in them? Select all that applies. 267x4 C(7,4)*253 C(7,4) 263 7! 3!4! *253 546,875 P(7,4)253 0 35 A donuts shop caries 8 different types of donuts. How many donuts the shop needs to guaranty that there are at least 7 donuts of the same type

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