Question: 7. Consider the grid on the right. How many ways to walk from home to work (going only N, E) avoid all three marked blocks?

 7. Consider the grid on the right. How many ways to

walk from home to work (going only N, E) avoid all three

7. Consider the grid on the right. How many ways to walk from home to work (going only N, E) avoid all three marked blocks? B A

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