Question

A rectangular rug is x + 4 feet wide and 2x + 1 feet long. Which expression represents the area of the rug?

A (x + 4) + (2x + 1)
B (x + 4) × (2x + 1)
C 2(x + 4) + 2(2x + 1)
D 2(x + 4) × (2x +1)

Answer 1

x + 4 feet wide and 2x + 1 feet long
width length

Area of a rectangle = width * length

Answer 2

A rectangle has 4 sides

(x+4) + (2x+1) All multiplied by 2

Does that make sense to you?

It will look something like 2(x+4) + 2(2x+1)

This is because each side is measured twice being that the rectangle has four sides, two of which are equal to another different side.