Thanks for the suggestions. We used to ride together 25 plus years ago. She has not ridden in a long time. I only assume I will be faster.
We are thinking of getting her an inexpensive bike and seeing how it goes. Then if she likes it and is slower as we expect then look into an e bike.
She would need something small, light and easy to handle. She is 5' 0" and about 110 lbs.
We are in Florida and do not have a lot of hills.