You can check out the CBSE Class 12 Chapter 12 Linear Programming revision notes here, along with additional study resources like mind maps and multiple-choice questions.

CBSE Class 12 Maths Linear Programming MCQs: Check here the multiple choice questions of CBSE Class 12th Mathematics Chapter 12 Linear Programming.

If you do not have any background with LPs it would help to learn a bit about them before the class begins; one recommendation is the book Understanding and Using Linear Programming by Matoušek and ...