I think it's 26.70 if I remember what a decimal is.
Answer:
Option c
Step-by-step explanation:
First multiply matrix A by -7.
Then multiply the matrix B by -6.
When multiplying a matrix by a number x you must multiply each element of the matrix by x.
<em><u>Then we perform operation -7A
</u></em>
<u><em>Now we perform operation -6B
</em></u>
Now we add the resulting matrices

The formula for slope is

In this case...

^^^Plug these numbers into the formula for slope...

-------------------> Simplifies to -1
^^^This is your slope
Hope this helped!
~Just a girl in love with Shawn Mendes