Thanks for uploading the image. I'll analyze and help solve the mathematical questions in the image step by step. Let me know which specific question you'd like me to start with or if you want solutions for all of them! Here's a summary of the questions:

Questions in the image:

1. 20 (a): Solve $3x + 4y = 7$ and $7x - y = 6$ using Cramer's Rule.
2. 20 (b): Explain types of matrices.
3. 21: Prove $p \land (q \lor r) \equiv (p \land q) \lor (p \land r)$.
4. 22: Find the minimum spanning tree of a graph using Kruskal's algorithm.
5. 23 (a): Arrange the letters of "EQUATION" such that the vowels always come together.
6. 23 (b): Write the converse, inverse, and contrapositive of the statement: "If $x$ is less than 1, then $x$ is a prime number."

Let me know where to begin! Would you like step-by-step solutions or concise answers?