Each concept will have a link to some BASIC problems you can do. Other study materials are up to you to find. GOOD LUCK :) WE BELIEVE IN YOU!!!
The links to the textbook can be found on the homepage of this website!
https://www.ixl.com/math/grade-6/solutions-to-inequalities
https://www.ixl.com/math/grade-6/write-inequalities-from-number-lines
https://www.ixl.com/math/grade-7/write-inequalities-from-number-lines
https://www.ixl.com/math/grade-8/write-inequalities-from-number-lines