Thinking the perimeter of the rectangle is 3x + 2 + x + 3x + 2 + X.
Alix expressed the perimeter as 2(3x + 2) + 2x. Babat expressed it as
8x + 4. Describe in words how each expression represents the
perimeter in terms of the length 3x + 2, the width x, or both.
Then identify one benefit of each form of the expression.

The perimeter of the rectangle is 8x + 4

A rectangle is a quadrilateral (has four sides and four angles) in which opposite sides are equal and parallel.

Perimeter of rectangle = 2(length + width)

Given that length = 3x + 2, width = x, hence:

Perimeter = 2((3x + 2) + x) = 2(3x + 2) + 2x

Perimeter = 6x + 4 + 2x = 8x + 4

The perimeter of the rectangle is 8x + 4

Find out more of rectangle at: link

rx and sx

step-by-step explanation:

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm