As many as you like.
As standard your website comes with 200MB of space to store all your media files. This will be plenty for most websites and should go along way.
Remember, large images don't work on mobile devices. Use an online image optimisation tool to give your visitors the best experience.
This is a great image editing tool.
We are more than happy to increase space on demand to a maximum of 500MB. Space greater than 500MB is charged at a fixed rate per month.