A 5 inch times 7 inch photograph is placed inside a picture frame. Both the length and width of the frame are 2 x inches larger than the width and length of the photograph. Which expression represents the perimeter of the frame?

The frame’s dimensions are 7 + 2x inches and 5 + 2x inches, since each is 2x inches larger than the corresponding photograph dimension. The perimeter is twice the sum of the dimensions: 2[(7 + 2x) + (5 + 2x)] = 24 + 8x. So the correct choice is 8x plus 24.

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