The variable x represents (d) The width of the deck
The statement is given as:
length of a deck is twice its width
This means that:
Length = 2 * Width
The equation is given as:
y = 2x
By comparing both equations, we have:
Length = y
Width = x
This means that x represents (d) The width of the deck
Read more about equations at:
https://brainly.com/question/2972832
#SPJ1