(1) Rob cuts a rope into \( 8 \) pieces. Each piece is \( 9 \) feet long. How long was the rope before Rob cut it? Write a division equa- tion with a letter for the unknown number. (2) Hannah connects \( 7 \) pieces of pipe. Each piece is the same length. When the pieces are all connected, the pipe is \( 28 \) feet long from end to end. How long is each piece? Write a multiplication equation with a letter for the unknown number.