Maximizing Novels Within Budget

Sarah has a budget of $120 to spend on books for her new reading club. Each novel she wants to buy costs $15, while each magazine subscription costs $8. If Sarah decides to buy $x$ novels and $y$ magazine subscriptions, she is constrained by the total expenditure of her budget.

This situation can be represented by the inequality:

$$15x + 8y \leq 120$$

What is the maximum number of novels she can buy if she does not purchase any magazine subscriptions?