Mathematics, 11.10.2020 01:01, mallorykay44

A student goes to lunch at school and pays for lunch with her ID. Her parents put money into her account for her to do so, but she doesn't know how much. Lunch is the same cost each day, but she doesn't know what that cost is. After buying 4 lunches, she sees that her balance is $91. After buying 9 lunches, her balance is $67.25

a) Does the student's lunch balance decrease linearly with respect to the number of lunches purchased? Why?

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A student goes to lunch at school and pays for lunch with her ID. Her parents put money into her acc...