Hello Rahsaan Tyler
I'm new to mysql so if someone more experienced comes go with them.
Are you practicing this with data provided from the book is this data or sql file free to acquire so i can go through the problem?
just going off the hint/question section
SELECT account_number, account_description
FROM General_Ledger_Accounts
OUTER JOIN invoice_line_items
WHERE invoice_id is null
ORDER BY account_number
website that goes over sql for mysql
https://www.mysqltutorial.org/
there are a lot of sql videos for mysql that you can watch for free that go over sql syntax were you are a visual learner this video might help ex
MySQL Full Course for free 🐬 (2023) from bro code
https://www.youtube.com/watch?v=5OdVJbNCSso&t=96s
hope this helps
Zach Ellis