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  3. 3 some tenyearolds are experimenting with secret codes aishas favorite...

Question: 3 some tenyearolds are experimenting with secret codes aishas favorite...

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3. Some ten-year-olds are experimenting with secret codes. Aishas favorite code involves replacing each letter with the one two letters later,so A is replaced with C, B with D, Y with A, and Z with B. Meanwhile, Tim prefers to replace letters with their position in the alphabet: 1 for A, 2 for B, and so on. Suppose Aisha encodes the word spam with her code and Tim encodes the result with his code a) What will the outcome be? b) Describe this scenario in terms of functions and their composition. c) Suppose Aishas code is defined only for letters, not numbers. Could the kids apply Tims code and then Aishas code to a message? Explain your answer in terms of domains and codomains.

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