Adelyn is planning to sell popcorn to raise money for a fundraiser.
She will need to rent a popcorn popper and will also need to purchase popcorn kernels, oil, salt, and bags.
She has at most $90 to spend on the fundraiser.
The rental of the popcorn popper costs $50.
The cost of popcorn kernels, oil, salt, and bags is $0.25 per serving.
Which inequality could be used to find out how many servings of popcorn that Adelyn will be able to make?