I really need help with these questions.. Even if you can only answer one anything helps! Will give points and mark for smartest

1. Evaluate the determinant for the following matrix:
Below is all in one Bracket

-4 -4 -3
3 3 -5
-5 2 -5

Answer Choices
A. –152
B. –203
C. 75
D. –263


2.

  Complete the multiplication: AB.

All sets of numbers are within a bracket.

A = 3 0 B= 2 8
2 -1 6 3

A. 6 0
1.2 -3

B. 6 24
3.4 5

C. 22 -8
7.8 -3

D. 6 24
3.4 13

3. Is in the 1st Picture

4.Use Gauss-Jordan elimination to solve the following linear system:
–3x + 4y = –6
5x – y = 10

A. (–6,2)
B. (2,–5)
C. (2,2)
D. (2,0)

5. If you were to use Gauss-Jordan elimination on the following linear system, what would the augmented matrix be? [ you can refer to second picture for 4 multiple choice answers ]

3w − x = 2y + z − 4
9x − y + z = 10
4w + 3y − z = 7
12x + 17 = 2y − z + 6

6. Refer to 3rd photo