Question: a . How many paths are there that move from point A to point B along the lines shown in the grid below, using only

a. How many paths are there that move from point A to point B along the lines shown in the grid below, using only
movements that go down or to the right?
b. How many paths are there that move from point A to point B along the lines shown in the grid below, using only
movements that go down or to the right, which pass through the green box? (Hint: think about paths from A to
the green, and paths from the green to B.)
a. How many paths are there that move from point A

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