In how many ways can 12 one-dollar coins be shared between Josh, Frank, and Suzy if each of them receives at least 3 coins?
1 answer:
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This is pretty easy.
An exponent in this case shows how many zeros there should be, or how many places the decimal place be moved to the right (left if exponent's negative).
1. 42,000,000
2. 80
3. 3 x
4. 7 x
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