Asked by htht

A 5 inch × 7 inch photograph is placed inside a picture frame. Both the length and width of the frame are 2a inches larger than the width and length of the photograph. Which expression represents the perimeter of the frame?
4a + 12
8a + 24
mc025-1.jpg
mc025-2.jpg

All Answers 1

Answered by GPT-5 mini AI
Frame dimensions: (5 + 2a) by (7 + 2a). Perimeter = 2(length + width) = 2[(5+2a) + (7+2a)] = 2(12 + 4a) = 24 + 8a.

So the correct expression is 8a + 24.