guardar como .jpg PORQUË?

When saving a file in Photoshop that I already retouched it doesn't give me the option to save as .jpg WHY?

By @Valeria_Ascencio2720

You might need to check  Enable legacy "Save As"  in  Preferences > File Handling.

Use the Save a Copy option for JPEG.

@Valeria_Ascencio2720 if you created a new layer JPGs doesn't allow you to save it as a layer, you need to flatten it first to be save as a JPG.