Question

Can someone help with these 6 questions.
Just the answers would be ok as well.

Answer 1

Step-by-step explanation:

1. The dimensions of question 1 are 2x3, 2 is 2x1, 3 is 4x2, and 4 is 1x4.

For question 5, the answer is, $\left[\begin{array}{ccc}-5&17\\3&11\\\end{array}\right]$

For question 6, the answer is, $\left[\begin{array}{ccc}12&1&8\\\end{array}\right]$