Question: Question 4: Computex as far as possible without a calculator. Where appropriate, make use of a smart decomposition of the exponent as shown in the

Question 4: Computex as far as possible without a calculator. Where appropriate, make use of a smart decomposition of the exponent as shown in the example in Sect. 1.4.1: a. x 32 mod 13 b. x 72 mod 13 c. x 310 mod 13 d. x 100 mod 13 e. 7 11 mod 13 Question 5 Suppose we want to encrypt using affine cipher with a -5 and b 8. a. What is the encryption function? b. What is the decryption function? c. Decrypt the ciphertext: HPCCXAQ using this affine cipher Question 6: Suppose we want to encrypt using affine cipher with a .5 and b 8. a. What is the encryption function? b. What is the decryption function? c. Encrypt the plaintext: ITS COOL using this affine cipher

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3. How would you address the problems that make up the situation?

2. What recommendations will you make to the city council?

5. When both the group and the speaker feel understood, ask for someone else in the group to take a turn as the focus person?