A rectangle has a length that is 8 less than its width, w. The perimeter is 52. Which equation can be used to determine its width?

The width is w, so the length is w − 8. A rectangle’s perimeter is twice its length plus twice its width, giving 2(w − 8) + 2w = 52. Therefore, the correct choice is the equation 2(w − 8) + 2w = 52.

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