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a sample of an unknown liquid has a volume of 12.0 ml and a mass of 6 g. what is its density? show your work or explain how you determined this value.

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