Hi there!
Answer:
D. 343
*The answer must have a positive sign.*
Explanation:
Lesson: Order of operations
It stands for:
Parenthesis
Exponents
Multiply
Divide
Add
Subtract
Left too right
First, you do exponent.



Final answer is 343
I hope this helps you!
Thanks!
-Charlie
Have a nice day! :)
:D