O D 9) Use the scenario to answer the question. Round all calculations to the nearest hundredth. Zara and her neighbor both had a neighborhood lemonade and cookie sale last weekend. Zara made $21.75 while her neighbor made $43.50. Write a system of equations for this situation. Determine how much each cup of lemonade cost. Let the cost of a lemonade = z. Let the cost of a cookie = y. Number of Lemonade Cookies Sales Zara 9 11 Neighbor 22 14 $1.51 $2.17 $0.80 $1.99

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