wouldn't the first one be 7x6x5x4x3=2520? the way i figure it, the first guy has 7 choices, which gives the second guy 6 choice, the third guy 5 choices, etc.

I could only think of 3 ways to make $63:

50+5+5+1+1+1
20+20+20+1+1+1
20+20+10+10+2+1

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