Answer:
I think it’s c
Step-by-step explanation:
Answer:
Width=20 feet
Since Length=Width=20 feet, the rectangle is a Square.
Step-by-step explanation:
Area, 
To determine the width of the rectangle that gives the maximum area, we take the derivative of A and solve for its critical point.

The width of the rectangle that gives the maximum area =20 feet.
Perimeter of a rectangle=2(l+w)
Perimeter of the rectangle=80 feet
2(l+w)=80
2l+2(20)=80
2l=80-40
2l=40
l=20 feet
Since the length and width are equal, the special type of rectangle that produces this maximum area is a Square.
PEMDAS
5(7+23)
5(30)
150
Hope this helped :)
Answer:
Step-by-step explanation:
so he can mark brainliest
The reflection of (-7, 2) across the y-axis is (-7, -2) (hope this helps ;3)