Question: Hi! I need help with some discrete math problems. 1. Prove or disprove: If p and q are primes (? 2), then p ? q

Hi! I need help with some discrete math problems.

1. Prove or disprove: If p and q are primes (? 2), then p ? q is composite.

2. Prove or disprove: The sum of two irrational numbers is irrational.

3. Convert (11101) 2 to base 16.

4. Use the Euclidean Algorithm to find gcd(900,140).

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