multiply all terms in the second equation by 2 to get the coefficient on the y variable to be -6.

The original number would be 900
Answer: The knights were responsible for protecting the people.
2nd one: 2 rectangles can have thr same area but have different perimeters.
the angles the top part that has a square is 90⁰ and x and y are equal so we will name them both x and all angles together make 180⁰
I don't know about the sides
Step-by-step explanation:
90+x+x=180
2x=180-90
2x=90
x=90/2
x=45