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marvin the fly starts at $(0,0).$ each step, marvin moves one unit right or one unit up. he is trying to get to the point $(5,7)$. however, at $(4,4)$ there is a frog that will eat him if he goes through that point. in how many ways can marvin reach $(5,7)$?

 Jan 31, 2022
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There are 464 ways that Marvin can reach (5,7).

 Apr 3, 2022

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