6. (A/pi = r^2)
7. [(P - 2l)/2 = w]
8. [C/(2pi)= r]
9. (2A/h = b)
10. (E/c^2 = m)
I think you did all your other questions right and here i attached the photo for how to do number 5
The answer is B) subtract to eliminate x.
That would mean the equation is-5x-(-5x) and a double negative equals a double positive and they will end up canceling each other out.
Hope this helps! ;))
Answer:
the image will be congruent to the pre image because n is equal to 1