Question: 8. Encrypt the message NEED HELP by translating the letters into numbers (A=0, B=1,..., Z=25), applying the encryption function f(p) (p + 3) mod

8. Encrypt the message NEED HELP by translating the letters into numbers (A=0, B=1,..., Z=25), applying the encryption function f(p) (p + 3) mod 26, and then translating the numbers back into letters. = 9. Find three integers m such that 13 = 7 (mod m) 10. Find the integer a such that a 89 (mod 19) and 0a20.

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