Final answer:
The width of the plywood cannot be calculated with the information provided, as there is no relation given between the cost and the dimensions of the plywood.
Step-by-step explanation:
The question asked does not provide enough information to determine the width of the plywood. Typically, to calculate the width, we would need information on the area or a given ratio or proportion that relates length and width. However, none of this information is available based only on the cost of the plywood. Therefore, without additional details about the plywood, such as its area or the length-to-width ratio, it is not possible to calculate the width of the plywood simply based on its cost.