The document contains 10 questions regarding matrices, probability, geometry, complex numbers, inequalities, and number theory. Question 1 asks to determine the range of values of k for which there exists a real matrix P satisfying certain conditions involving a given matrix A. The range is given as [-2,∞). Question 2 asks for the value of n for which events A and B are independent, where A and B involve the number of boys and girls on a school bus. The only solution is n=3.