For each pair of Examples below, decide whether the two examples have the same contract. If they do, fill in the contract in the space provided. If not, write a few words explaining how you know their contracts aren’t the same.
1
examples:
mystery(triangle(70, "solid", "green")) is
triangle(140, "solid", "green")
mystery(circle(100, "solid", "blue")) is
circle(200, "solid", "blue")
end
2
examples:
mystery("red") is triangle(140, "solid", "red")
mystery("blue", "circle") is circle(140, "solid", "blue")
end
3
examples:
mystery("+", 4, 5) is 4 + 5
mystery("sqrt", 25) is num-sqrt(25)
end
4
examples:
mystery("circle", 4) is num-pi * num-sqr(4)
mystery("square", 5) is num-sqr(5)
end
5
examples:
mystery("dog") is 3
mystery("cat") is "kitten"
end
6
examples:
mystery("dog") is 3
mystery("kitten") is 6
end
These materials were developed partly through support of the National Science Foundation,
(awards 1042210, 1535276, 1648684, and 1738598). 
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