Which is the simplified form of the expression (6-4)-9

I'll give you a hint. You had to used pemdas stands for: p-parenthesis, e-exponents, m-multiply, d-divide, a-add, and s-subtracting.

First you had to calculate with parenthesis first.

Then you add and subtract from left to right.

Final answer

Hope this helps!

And thank you for posting your question at here on , and have a great day.

-Charlie

18a

step-by-step explanation:

simply because it is. it's the highest common factor