A piece of copper tubing 60 inches long is cut into two equal pieces. Each piece is formed into a square frame. If the total area of the two frames if 117 square inches, what is the length of each piece of tubing?

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This one is giving you the perimeter 60/2 for each frame. The key words are "square" meaning the length will equal the width.

This means you have a perimeter of 30 and 4 equal sides per frame- 30/4 or 15/2
This should give a side length of 7.5, it's not exactly correct, but it's close enough to the sqrt of 58.5

58.5 is 1/2 of the total combined area of the 2 squares. It is assumed that the two frames are equal since the tubing was split into two equal pieces and both formed squares.

Does this make any sense?