It says 9 in. Also find the perimeter and area. If y’all could help me out that would be great.

Perimeter: 36 inches

Area: 81 inches²

Step-by-step explanation:

Hi there!

1) Find the perimeter

Apply the formula for the perimeter of a square:

where a is the side length

Replace a with 9:

Therefore, the perimeter of the square is 36 inches.

2) Find the area

Apply the formula for the area of a square:

where a is the side length

Replace a with 9:

Therefore, the area of the square is 81 inches².

I hope this helps!

easy its decreasing

step-by-step explanation:

because its top point is at the to of the graph on the left side (atleast from the veiw i see it) now if that top point wast in the lower part of the graph it would be increasing hope this have a nice day

the answer is d

for problems like this theres an app, its photomath that explains the problem and gives the answer hope i