PLEASE ANSWER FOR ME. I NEED HELP ASAP

Answer:
[tex]-5[/tex]
Step-by-step explanation:
To evaluate the expression (get an answer as a value), you have to plug in the respective values of a, b, and c in the expression given as:
[tex](26-a)+\frac{-2bc}{2}[/tex]
Lets use the values of a, b, and c and substitute:
[tex](26-a)+\frac{-2bc}{2}\\(26-13)+\frac{-2(3)(6)}{2}[/tex]
Now, we do arithmetic and solve for the expression value. Shown below:[tex](26-13)+\frac{-2(3)(6)}{2}\\=(13)+\frac{-36}{2}\\=13+(-18)\\=13-18\\=-5[/tex]
The answer is -5