Find each of these values b. a. (123 mod 19 + 342 mod 19) mod 19 (123 mod 19 * 342 mod 19) mod 19 c. (12 mod 17) mod 11 d. (54 mod 7) mod 13 Find the sum and product of each of these pairs of numbers. Express your answer as the expansions provided in the given bases. a. (10 1011) , (110 1011) b. (202)3, (122) 3 c. (371)g, (624)g d. (E3A)16, (B5F8) 16 Use the Euclidean Algorithm to find the following greatest common divisors: a. gcd(44,52) b. gcd(144,233) c. gcd (203, 101) Encrypt the following messages below using the respective functions provided: a. STOP AT NOON, f(x) = (x + 6) mod 26 b. JUST TESTING, f(x) = (5x + 3) mod 26 C. MEET ME AT NOON, f(x) = (9x + 1) mod 26