Answer:
24
Explanation:
Now, this table might look a little intimidating, but the easiest way to find the equivalent ratio of all the numbers is to divide the Price by the Number Of Notebooks. By doing this, you'll see that every row has a ratio of 6, meaning that each book costs $6. So, the number of notebooks will have to be multiplied by 6 to get the full cost.
To get the answer, multiply 4 by 6 to get 24.