Thanks for everyones feedback, i'll check ghz tomorrow and it does have expandable ram which might be the route i take.
As to usage, she's mostly using it for the internet connection, research, writing, spreadsheets and designing simple posters. She runs the online versions of google and microsoft docs (haven't yet convinced her with libre office 😅 must try harder) so it certainly doesn't need to be a powerhouse but it does need to handle up to 5 browser tabs.