If the determinant of this matrix is 24, what is the value of b?

Asap 25 pts + brainlest to right/best answer

Questions 14 through 23, choose the onest answer. write your answer in the box forestion 24. mark your answer on the coordinatene grid for question 25.the sum of three consecutive even numbers is 96.what is the largest of these numbers? (a) 30(b) 32(c) 34(d) 36

Icould really use some with this question.