hellp plese what is it

Answer:
17
Step-by-step explanation:
[tex]2\times 3^2-1[/tex]
We can solve this by follow PEMDAS order of operations:-
1) Exponents
[tex]2\times \:9-1[/tex]
2) Multiplication
[tex]18-1[/tex]
3) Subtraction
[tex]17[/tex]
~
Hope this helps!