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Question 9 (1 point) Suppose the following foo function was called from when the current referencing environment consisted on

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Answer #1

output = 4 + foo(3)
=> 4 + 3 - foo(2)
=> 4 + 3 - (2 + foo(1))
=> 4 + 3 - (2 + (1 - foo(0)))
=> 4 + 3 - (2 + (1 - (-1)))
=> 4 + 3 - (2 + (2))
=> 4 + 3 - 4
=> 3

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