Locating Pages app after MacBook hardware reinstallation

Hello, I recently had an issue with my MacBook and the entire hardware was uninstalled and reinstalled. I cannot find the Pages app - not sure if this is the correct name. It's similar to Microsoft Paint where I can drag in jpeg pictures and create text boxes/make titles or captions with them. I know I paid for it a long time ago. Where can I find it? thanks in advance

[Re-Titled by Moderator]

Original Title: Pages app question