Simple steps to upgrade Sitecore 8.2 application to 10
https://dev.sitecore.net/Downloads/Sitecore_Experience_Platform/102/Sitecore_Experience_Platform_102.aspx
Sitecore
How to start development with Sitecore Commerce 9 / Sitecore Commerce 9 Learning Resources
https://sitecore.stackexchange.com/questions/12771/how-to-start-development-with-sitecore-commerce-9-sitecore-commerce-9-learning
Sitecore 9 Installation on Azure using Sitecore Installation Framework
https://www.youtube.com/watch?v=pYW2spnRL9U