Final answer:
Mrs. Wanza will need 8 cups of chocolate chips to make 3 batches of brownies.
Step-by-step explanation:
To find the total number of cups of chocolate chips needed, we need to multiply the number of cups required for each batch by the number of batches. The recipe calls for 2 2/3 cups of chocolate chips for each batch, and Mrs. Wanza wants to make 3 batches. So, the total number of cups of chocolate chips needed is 3 * 2 2/3 = 8 cups.