Answer:

Explanation:
We have to evaluate
.
To evaluate this, we first need to solve the part inside the bracket.
Here,
.
So, the expression becomes
![9/ 3[12-22]](https://img.qammunity.org/2020/formulas/mathematics/middle-school/xqacuyw11km508c6fb285ri2sd6qtpvcpf.png)
Again we need to solve the part inside the bracket
Here,

So, the expression becomes

Now, we need to divide the two numbers 9 and 3 before multiplying
the expression becomes

Finally

Therefore, on evaluating the expression we get
.