What is the determinant of A= 3 1 2 11 -1 14 -3 0 11​

Really need on these. i have no idea what to do

Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row

Two triangles can be formed with the given information. use the law of sines to solve the triangles. b = 49°, a = 16, b = 14