SOLUTION: In how many ways can a student work 7 out of 10 questions on an exam?

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Question 116172: In how many ways can a student work 7 out of 10 questions on an exam?
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
FOR THE FIRST CHOICE YOU HAVE 10 QUESTIONS, THE NEXT CHOICE IS 9 QUESTIONS, ETC.
10*9*8*7*6*5*4=604,800 ANSWER.