6) The combined length for all of the 1/2 crystals is 2 inches.
7) The combined length for all of the 5/8 crystals is 1 7/8 inch.
8) The combined length for all of the crystals on the bracelet is 8 inches.
9) I got 0.571428 for an answer. I think it's right, but not completely sure. Sorry.
