Respuesta :
The value of the expression is 274.5
Here, we want to find the value of the expression
To do this, we are going to use the order of operation
This order is called the PEDMAS
Where P stands for parentheses , E for exponent (roots and powers). D for division, M for multiplication. A for addition and S for subtraction
Now, we can see that there are three parentheses
We start with the innermost one
That is the one with multiplication and subtraction
By doing this, we have that;
[tex]\begin{gathered} (9\times9)-10\text{ = 81-10 = 71} \\ \text{Then, divide by 2} \\ \frac{71}{2}\text{ =35.5} \\ \text{Then subtract 5} \\ 35.5-5\text{ = 30.5} \\ \text{Multiply finally by the 9 outside} \\ =\text{ 30.5}\times\text{ 9 = 274.5} \end{gathered}[/tex]