Are two patties and 2 bananas enough food to last me 8 hours?

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The reason I want to eat patties is because it is cheap. If I eat patties with cheese every time I'm hungry - I can eat breakfast and lunch for $32 dollars a month and my parents make me dinner and they cook for me over the weekends as well. I am just worried I am not getting enough calories if I only eat patties and bananas for breakfast and lunch. Is this enough calories / nutrition to last me 8 hours? For dinner my parents usually cook vegetables, meat and noodles?
Are two patties and 2 bananas enough food to last me 8 hours?
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