If you're working on Aztec or confused about a topic or question, open a new tab on your internet server, set up an internet search with a few key words and the word "Khan", and then look at the links that include Khanacademy.org. As an example, if the question is asking
Find the length of the hypotenuse for the right triangle whose sides are 5 and 10, you would type the words "hypotenuse right triangle khan" and see if you can find a lesson to help you solve the problem.