1. A
I hope this helped! This is because the division of numbers and factors are equal to this.
Answer:
5 wood
Step-by-step explanation:
The matrix should be this:
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![\left[\begin{array}{ccc}2&-3\\1&1\end{array}\right]](https://tex.z-dn.net/?f=%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D2%26-3%5C%5C1%261%5Cend%7Barray%7D%5Cright%5D%20)
</span>
4s + 5 = 19
First, subtract 5 from both sides. / Your problem should look like: 4s = 19 - 5.
Second, simplify 19 - 5 to 14. / Your problem should look like: 4s = 14.
Third, divide both sides by 4. / Your problem should look like: s =

.
Fourth, simplify

to

. / Your problem should look like: s =

which is the answer.
If m=4 and n=4 then m=n
4=4
1=1