I need help figuring out this problem in my stats class and would appreciate any step by step help to better understand this. Thank you so much ??

2.) WENDy's We figured out that there are 256 way to personalize a Wendy's hamburger OLD FASHIONED HAMBURGERS. Luckily someone was paying attention in math class. The above was printed on the side of a Wendy's take-out bag. Is the number correct? Were they really paying attention in math class? If you think the number is correct, explain why, specifically showing how to get the 256 using an appropriate counting technique. If you think the number is wrong, explain why and determine the correct number using an appropriate counting technique. (Use the back of this sheet if you need more space.) [3 pt] FYI: The following are the items that you may choose to have on a Wendy's hamburger: Cheese, Lettuce, Tomato, Onion, Pickle, Mustard, Ketchup & Mayo