Which expressions are in their simplest form? Check all that apply. 1
+x?
-9
1
X
-
y
1
1
1
tul
1
3
x + -
y
-t
x-y-4

Someone answer this asap for the length, in feet, of a rectangular rug is represented by the expression 5x² + 2x. the width, in feet, is represented by the expression 3x². which expression represents the perimeter, in feet, of the rug? a. 8x² + 2x b. 8x² + 4x c. 16x² + 2x d. 16x² + 4x