Please help I'm very confused.

So the area of the square is 100 while the sides are all equal to 10 leaving a perimeter of 40 since the square has 4 sides so 4*10=40

Step-by-step explanation: So for this questions you want to look at the bigger picture and what I mean by that is the larger square BHFD outside of square ACEG right. So if you look carefully you'll see 4 triangles labeled something like ABC, AHG, CDE, and GEF. using these triangles and there sides we can solve for the hypotenuse which is also the side of the square ACEG and since all the triangles have the same dimensions we only need to solve for one of them. So using pythagorean theroem 8^2+6^2=c^2 where in this case c = a side of the square ACEG so c = 10. Now that we have the sides all equal 10 the area or length times width = 10*10=100. Hope it helps :)

answer is:

1.75 pounds

-2

7 - 9 = -2

reversed:

-2 + 9 = 7