Ireally need with these questions.. even if you can only answer one anything ! 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