What is question number 5?

4. Melanie E. Regan wrote the following words on a sheet of notebook paper in her own handwriting: "Twenty years from date, I, Melanie E. Regan promise to pay to the order of Ryan M. Brown $10,000 without interest." She did not sign the paper at the end. Is the instrument negotiable? Why or why not? 5. David Shin, a silver collector, ran short of cash. He borrowed $1,500 from Vinnie Gaff, giving Gaff the following note: "Thirty days from date, I promise to pay to the order of Vinnie Gaff $1,500 worth of silver (signed) David Shin." Gaff indorsed the note and gave it to Kia Lai in exchange for services rendered by Lai. What legal term describes the transfer of the note from Gaff to Lai? Explain your answer. 6. Powell, intending to write a check to Thompson Electric Inc., instead made it payable to the order of "Tompson Electric." Thompson