What is the value of the expression below when z=3 and w =2
10z+ 5w

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Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?

Draw a tape diagram to represent each situation. for some of the situations, you need to decide what to represent with a variable andre bakes 9 pans of brownies. he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students