Final answer:
The price of each book and each puzzle that Neena bought is $7.50, assuming that the total spent is $15 and both items have the same price.
Step-by-step explanation:
The question asks about the price of books and puzzles Neena bought, given that she spends $15 in total and that both items have the same price. Although the system of equations and graph are not provided in the information given, we can create a system of equations based on the details. The equations would likely be something like:
Since the price of a book (b) and a puzzle (p) are the same, we can simplify this to 2b = 15 or 2p = 15. Dividing both sides by 2, we get:
Therefore, the price of each book and each puzzle is $7.50.