A:Answer Hi Lexi,
You can copy and paste information like entries on the entry line on the home screen. Users may refer to page 211 of the TI-89 Titanium Guidebook for further reference, https://education.ti.com/en/guidebook/details/en/FA1DC891957E4700B46A67255850C592/89ti
Cutting or Copying Information to the Clipboard
When you cut or copy information, that information is placed in the clipboard. However, cutting deletes the information from its current location (used to move information) and copying leaves the information.
1. Highlight the characters that you want to cut or copy.
In the entry line, move the cursor to either side of the characters. Hold ¤ and press
A or B to highlight characters to the left or right of the cursor, respectively.
2. Press ƒ and select 4:Cut or 5:Copy