Alexandra has a stand in the marketplace where she sells ground cumin. She has a fixed amount of weekly expenses, and she sells
her cumin for $7.20 per kilogram. If she sells 90 kilograms of cumin, her weekly net profit is $414. What are Alexandra's weekly expenses?
How much cumin does Alexandra have to sell to cover her weekly expenses?
The relationship between the number of pies and the cost is not proportional. This is because the third pie is at half price, meaning it's not consistent with the price of the other two.