Oscar is sealing his boat with a special type of sealent. he needs to mix the sealant with water at a ratio of 3: 2. how many gallons of water will he need if he planes to use 9 gallons of sealant?

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