Describe in detail how Mari could end up with the lemonade stand breaking even. ("Breaking even" means "a profit of 0," or that she makes enough money to pay for her start-up costs but has no money left over.) Your description must include: the cost of each type of supply (lemonade, cups, and advertising), with each cost represented as a negative number and in dollars

the price Mari charges for 1 cup of lemonade, in dollars

the total amount of sales, in dollars

the money she has left over after covering her start-up costs, in dollars

a mathematical expression and model that use the concepts in this lesson to show the amount of profit.